A 65 year-old male with a history of chronic glaucoma has progressive optic nerve damage and elevated intraocular pressure. a clear corneal incision is made and viscoelastic material is injected into the anterior chamber over the lens to increase and maintain anterior chamber depth. the endoscope is inserted through the temporal incision to view the nasal ciliary processes, which is coagulated with the endpoint of shrinkage and whitening. the endoscope is moved in an arc, allowing treatment of the processes over an arc of 180° and a second corneal incision is made 90° away and 180° of ciliary processes are destroyed with laser therapy. the surgeon has completed coagulation of 270° of angle. the eye is reformed with balanced salt solution. wounds are checked for leakage and sutures are placed to seal the wound. what cpt® code is reported?

Answers

Answer 1
Glaucoma is a disease involving increased intraocular pressure as well as optic nerve damage leading to progressive loss of vision. The surgery done in the patient is called trabeculectomy which involves incision and repair of the iris and the ciliary body. This corresponds to the CPT code of 66711, under destruction procedures on the iris, ciliary body of the eye.

Related Questions

Although jeremy lost his left leg beneath the knee, he often experiences great pain in his left foot. this is known as

Answers

"Phantom Limb Syndrome," the sensation of a body part that is no longer present, but feels like it's still there, is most often due to limbs, after amputation or traumatic destruction. It is due to the cerebral cortex still trying to "make sense of" a limb that used to send signals to it.
When it is painful, it's called "phantom pain" as such.

Roland takes a walk through the desert. While there, he becomes extremely thirsty. To quench his thirst, he drinks a bottle of cold water. The water pleasantly refreshes him and he plans on bringing water more often on his desert hikes. Which type of operant conditioning in occurring in the scenario?
A. positive reinforcement B. negative reinforcement C. positive punishment D. negative punishment

Answers

the answer is A positive reinforcement

The right option is; A. positive reinforcement

Positive reinforcement involves adding a pleasant stimulus after a behavior which makes the behavior to likely take place again in the future. When a desired reward or event occurs after an action, that specific behavior or response will be enhanced. From the question, positive reinforcement is the type of operant conditioning that is occurring in the scenario. There is addition of a reinforcing stimulus (Roland drinks a bottle of cold water) following a behavior (thirst). The addition of the stimulus brings a desired outcome because he feels refreshed after taking the water, and it increases the likelihood that the behavior will occur again in the future.




Digestion begins when starch is broken down in the _____.
mouth
stomach
liver
intestines

Answers

The correct answer is the mouth. Digestion begins when food enters the mouth, chewed, and mixed with saliva. Food usually has complex carbohydrates such as starch in them and saliva has an enzyme called salivary amylase which can break down these complex carbohydrates into simpler molecules (i.e. dextrins). After which, these dextrins are digested further in the stomach and in the small intestine by the action of enzymes such as the pancreatic amylase which further breaks down dextrins into oligosaccharides and disaccharides. Other enzymes such as trypsin breaks down proteins into amino acids and lipase that breaks down fat into triglycerides. In the brush border of the small intestine, there are enzymes such as oligosaccharidases and disaccharidases which breaks down sugars into their most basic forms (i.e. glucose, fructose, galactose) which can be readily absorbed in the intestine. Amino acids and tricglycerides are also readilty absorbed in the intestines with the latter by the help of emulsification by bile. 

Answer:

the mouth

Explanation:

Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen and phosphorus, are used to fertilize crops. Excessive use of these compounds causes , which leads to in bodies of water.

Answers

Answer:

eutrophication and algal growth

Explanation:

Thats what i got, you can also look up the answers on google

Final answer:

The overuse of fertilizers containing nitrogen and phosphorus can cause eutrophication in water bodies, leading to excessive aquatic plant growth, oxygen depletion, and the creation of dead zones harmful to aquatic life and potentially humans.

Explanation:Impact of Fertilizer Runoff on Biodiversity

Human activity, particularly in agriculture, can release nitrogen and phosphorus into the environment through the use of artificial fertilizers. The excessive use of these fertilizers leads to a phenomenon known as eutrophication. When fertilizers are washed off fields by rain or irrigation, they enter nearby bodies of water, leading to nutrient pollution. This pollution stimulates the overgrowth of algae and other aquatic microorganisms. The dense algal blooms block sunlight from reaching deeper water and clog waterways, which significantly disrupts the ecosystem. After the algae die, their decomposition depletes the water of dissolved oxygen, which aquatic animals, such as fish and shellfish, need to survive. This creates anoxic, or oxygen-depleted, conditions often resulting in 'dead zones' where few aquatic organisms can live. The detrimental effects of eutrophication on aquatic systems can extend up the food chain, potentially affecting human health as well.

Aside from the direct effects on aquatic environments, excess nitrogen from fertilizers can contribute to the formation of greenhouse gases and acid rain when combined with the combustion of fossil fuels. These broader environmental impacts can contribute to climate change and negatively affect both terrestrial and aquatic ecosystems.

Mr. smith is a professional landscaper and spends a majority of his day working outside in the sun. what advice would you give him so that he can lower his risk for developing skin cancer?

Answers

If given a chance to advice Mr. Smith, I would recommend him to minimize going out in the sun when it is at the peak of the morning but if not possible since he works under the sun, it would be good to put on sunblock with a highest SPF and use precautionary measures like using hats and wearing long sleeve to protect also the skin.  More water to hydrate, and vitamins for skin protection.

Final answer:

To lower the risk of skin cancer, Mr. Smith should avoid sun exposure, use sunscreen, and wear protective clothing.

Explanation:

Avoiding excessive sun exposure, using sunscreen, and wearing protective clothing are crucial steps for Mr. Smith to lower his risk of developing skin cancer. Sun avoidance between 10 am and 3 pm, using high SPF sunscreen, and wearing a hat, sunglasses, and protective clothing can greatly reduce the harmful effects of UV radiation.

Lifetime sun exposure is a risk factor for skin cancer, and artificial sources of UV radiation like tanning beds should be avoided to minimize the risk. Additionally, considering factors such as light-colored skin, family history of skin cancer, and the number of moles is important in assessing skin cancer risk.

Misinterpreting her physician's instructions, a 69-year-old woman with a history of peripheral artery disease has been taking two 325 mg tablets of aspirin daily. how has this most likely affected her hemostatic status? a. irreversible acetylation of platelet cyclooxygenase activity has occurred. b. she is at risk of developing secondary immune thrombocytopenic purpura (itp). c. the binding of an antibody to platelet factor iv produces immune complexes. d. the patient's prostaglandin (txa2) levels are abnormally high.

Answers

The answer is a.) irreversible acetylation of platelet cyclooxygenase activity has occurred. Studies who that aspirin intake (40 to 160 mg a day) can inhibit the cyclooxygenase activity of platelets by at least 80%. The effect lasts for the entire lifespan of a platelet which is approximately 8 to 9 days.

Dean plays various war games on his computer all the time, even when he has other things (e.g., work and studying) that need to be done. when dean is unable to perceive his behavior as self-destructive, which symptom of addiction is dean demonstrating

Answers

There are four symptoms of addiction namely:

Obsession
Negative consequences
Lack of control
Denial

In this patient, he denies that his behavior is self-destructive; even with the concrete evidence that he is being self-destructive (i.e. plays all day even with work to do). There are two descriptions of denial wherein; (1) he denies that what he does cannot be controlled and (2) he denies that what he does leaves a negative impact in his life. This patient falls to the latter description of denial.
I believe the symptom of addiction that Dean has is denial. a person who is in denial has lost touch with what is real(reality). They usually believe they are right and that they are the ones who know the truth. This this situation Dean is in denial of the fact that playing games has make him lose track of other things in his reality. this has made him to be unable to perceive his behavior is self destructive.

what is the process of determining a specific age of an object.

Answers

What is the process of determining a specific age of an object.

Answer: Carbon Dating
Carbon dating is usually used for the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains. The ratio between them changes as radioactive carbon-14 decays and is not replaced by exchange with the atmosphere. Though other forms may be used. Remember to check yourself.
Hope this helps :)

Digitalized info can be used by computers true or false

Answers

True, because computers are digital machines, as they can read information.

The statement ""Digitalized info can be used by computers"" is true.

Digitalized information, which is data that has been converted into a digital format, can be processed, stored, and transmitted by computers. Unlike analog information, which is continuous and represented by physical variables like voltage or pressure, digital information is discrete and represented by binary digits (bits), typically in the form of 0s and 1s. This digital representation allows computers to manipulate data with high precision and reliability, facilitating a wide range of applications from simple word processing to complex data analysis and artificial intelligence.

How does a cell move a molecule that is too large for transport proteins?

Answers

Answer:

The transport of a larger molecule is facilitated by phagocytosis of the endocytosis process.

Explanation:

Endocytosis is a process in which the material to be interiorized is surrounded by an area of the cell membrane. Then it buds off inside the cell to make a vesicle containing the targeted molecule. Endocytosis includes pinocytosis or cellular drinking and phagocytosis or cellular eating.

The process by which the plasma membrane of a cell engulfs a large molecule or particle, give rise to an internal package or compartment called the phagosome, is phagocytosis. It is also known as cellular eating.

Fluid endocytosis or pinocytosis is a mode of endocytosis in which small particles suspended in a fluid are internalized and brought into the cell.

Thus, Transport of larger molecule is facilitated by phagocytosis of the endocytosis process.

You participate in a sleep study at a university clinic. the researchers measure your body chemistry while you are sleeping. which hormone do they find follows a circadian rhythm and peaks just before you wake?

Answers

The hormone they would measure is melatonin. In animals, this is a hormone produced by the pineal gland which regulates sleep, but has an anti-oxidant function in plants. Melatonin synchronizes the circadian rhythms of animals including timing of wakening and regulation of blood pressure.

After eating a salty fish dinner you are very thirsty for plain water, a condition described as

Answers

Answer: Hypernatremia

Hypernatremia is a condition that infers too much salt and less water in the body, which could result to dehydration where the person is thirsty for plain water after eating a salty fish. There are sensors in the body that could detect saltiness of the blood and this sends signals to the brain that the body needs water to dilute the salt and balance the fluids in the cells. Therefore, making the person feel thirsty for water.

Explain the physiological basis for the difference in side effects between estrogenic and androgenic steroids.

Answers

Final answer:

The side effects of estrogenic and androgenic steroids differ due to their interactions with specific receptors in the body, leading to various health risks when misused or abused.

Explanation:

The physiological basis for the difference in side effects between estrogenic and androgenic steroids stems from their different roles in the human body and the way they interact with specific receptor sites. Estrogenic steroids, predominant in females, are involved in reproductive and secondary sexual characteristics. They activate estrogen receptors that influence gene expression related to menstrual and estrous cycles. Androgenic steroids, like testosterone, are prominent in males and are responsible for male secondary sexual characteristics and reproductive functions. These steroids act on androgen receptors and influence traits like muscle mass and hair growth. When abused, androgenic steroids can cause liver dysfunction, heart issues, and reproductive disorders. On the other hand, misuse of estrogenic steroids might lead to an increased risk of blood clots, breast cancer, and hormone-sensitive growths. Both types of steroids exert a physiological strain on the body, leading to a range of potential health risks when administered in high doses or without medical supervision.

The difference in side effects between estrogenic and androgenic steroids stems from their distinct physiological actions and tissue-specific effects, with estrogenic steroids primarily influencing tissues with estrogen receptors, such as the reproductive organs and bones, while androgenic steroids primarily affect tissues with androgen receptors, such as muscle and skin.

Because of their unique methods of action and effects on different body tissues, estrogenic and androgenic steroids have different adverse effects, which can be explained physiologically.

The primary mechanism by which estrogenogenic steroids, including estradiol, work is by binding to oestrogen receptors in target tissues. Numerous tissues throughout the body, including the brain, heart, bones, and reproductive organs, contain these receptors. Oestrogen can affect gene expression, cell proliferation, and differentiation when it binds to its receptors. These actions can have physiological implications include regulating the menstrual cycle, maintaining bone density, and developing and maintaining secondary sexual characteristics in females.

But estrogenic steroids can also have unfavourable side effects, especially if taken excessively or for an extended length of time. Estrogenic steroids frequently cause mood swings, fluid retention, breast enlargement or discomfort, and an increased risk of blood clots and cardiovascular problems.

However, androgenic steroids—like testosterone and its derivatives—primarily work by attaching themselves to androgen receptors in order to produce their desired effects. In addition, these receptors are present in a variety of tissues, such as the skin, muscle, bone, and reproductive organs. The development and maintenance of male secondary sexual traits, such as the development of facial hair, a deeper voice, and increased muscle mass, are significantly influenced by androgenic drugs.

Similar to estrogenic steroids, androgenic steroids may have unfavourable effects, particularly if taken excessively or for an extended length of time. Acne, male pattern baldness, increased body hair growth, and possible cardiovascular consequences like higher blood pressure and altered cholesterol levels are common side effects of androgenic drugs.

The physiological actions and tissue-specific effects of estrogenic and androgenic steroids differ, which explains why they have different adverse effects. When used properly, both forms of steroids can have positive effects, but there is also a chance that they will have negative side effects, which should be carefully evaluated before using or prescribing these drugs.

1.What is the difference between spoils and tailings?

Answers

The difference is where the material came from. Spoils come from overburden and is discarded as waste, whereas, tailings come from left over dredging of steam beds that are discarded as waste as well. 

Spoils and tailings are the runoffs and wastes disposed of from a mining field. Tailings come from the waste after extraction, and spoil is a rejected waste.

What are spoils and tailings?

Spoils are the wastes and debris that come from mining. They get accumulated during the excavation or when the foundation is dug for mining purposes. The waste contains chemical wastes, rocks, and soil.

On the other hand, tailing is residual waste formed as a result of the ore extraction and gets disposed of on the land or even in the water bodies. They may contain chemicals and are a good source of metals.

The minings and tailings must be disposed of safely as they can lead to environmental issues like landslides, land degradation, soil pollution, water pollution, etc.

Therefore, the tailings and spoil are the mining waste that differs in the source.

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Which intervention would the nurse implement for the patient diagnosed with disseminated intravascular coagulation (dic)?
a. administer oral anticoagulants.
b. maintain urine output at 20 ml per hour.
c. prepare the patient for plasmapheresis.
d. administer fresh frozen plasma?

Answers

It is between C) and D), but the best answer would be:
C) prepare the patient for plasmapheresis.
Because that's the only true way to filter out the tiny clots from the blood, without leading to more hemorrhage (as with anticoagulants).

Name three intermolecular forces that stabilize the structure of dna, and explain how they act.

Answers

Final answer:

The structure of DNA is stabilized by three intermolecular forces: hydrogen bonding, which maintains the double helix through base pair interactions; van der Waals interactions, supporting the base pairs' stacking; and electrostatic interactions, which neutralize the phosphate backbone's charge.

Explanation:

The stability of DNA's structure is attributed to three key intermolecular forces. These forces include:

Hydrogen bonding: This occurs between the complementary base pairs of the DNA strands. For instance, adenine (A) forms hydrogen bonds with thymine (T) and guanine (G) pairs with cytosine (C). Hydrogen bonds are crucial in maintaining the double helix structure of DNA.Van der Waals interactions: These weak attractions occur between the base pairs when the DNA molecule twists into its helical shape. They help to stabilize the stacking of the base pairs within the double helix.Electrostatic (ionic) interactions: These interactions occur between the negatively charged phosphate backbone of DNA and the positively charged metal ions in the cell. This stabilizes the overall structure of the DNA molecule by neutralizing the repulsive forces between the negatively charged phosphates.

The structure of DNA is stabilized by hydrogen bonds, dipole-dipole interactions, and London dispersion forces. Hydrogen bonds form between complementary bases, dipole-dipole interactions stabilize the sugar-phosphate backbone, and London dispersion forces contribute to base pair stacking. These forces collectively ensure the integrity and functionality of the DNA double helix.

Intermolecular Forces Stabilizing DNA Structure

The structure of DNA is stabilized by several types of intermolecular forces that ensure its integrity and functionality. The three main intermolecular forces are dipole-dipole interactions, London dispersion forces, and hydrogen bonds.

1. Hydrogen Bonds

Hydrogen bonds are essential for the stability of the DNA double helix. These bonds form between the nitrogenous bases of complementary DNA strands. Specifically, adenine (A) pairs with thymine (T) through two hydrogen bonds, and guanine (G) pairs with cytosine (C) through three hydrogen bonds. These hydrogen bonds help to hold the two strands of the double helix together, maintaining the helical structure and allowing for accurate replication of genetic information.

2. Dipole-Dipole Interactions

Dipole-dipole interactions occur between molecules that have permanent dipoles. Within DNA, these interactions can occur between the phosphate groups of the sugar-phosphate backbone and water molecules in the surrounding environment. These interactions help to stabilize the overall structure of DNA by ensuring that the negatively charged phosphate groups are properly oriented and do not repel each other excessively.

3. London Dispersion Forces

London dispersion forces (also known as van der Waals forces) are weak intermolecular forces that arise from temporary dipoles that occur due to the movement of electrons. In DNA, these forces play a role in the stacking interactions between adjacent base pairs. Even though they are weak individually, collectively, these forces contribute significantly to the stabilization of the DNA double helix by maintaining proper spacing and alignment of the base pairs.

Overall, these intermolecular forces are crucial in maintaining the structural integrity and functionality of DNA.

What are the three domains used to classify organisms?

Answers

The three domains used are:
-Archea
-Bacteria
-Eukarya
Every organims fits into one of those three.

~Deceptiøn
The three domains in classifying organism are bacteria, archaea, and eukaryota.

Structures that have reduced in size because they no longer serve an important function are called

Answers

Hello there!

These structures are called Vestigial Structures.

The Vestigial Structures are those whose original function was lost during evolution. In humans, these structures are the appendix, the coccyx, the wisdom teeth and others. 

In animals, examples of vestigial structures are the wings of flightless birds, hind leg bones on whales and pythons and eyes in blind fishes. Those vestigial structures help scientists study the evolution of some species. 

Vestigial structures are remnants of organs that were necessary in our ancestors but no longer have a significant function, such as the human appendix. They may become smaller over generations as unnecessary traits are not maintained, and larger unused structures could be detrimental to an organism's fitness.

Structures that have reduced in size because they no longer serve an important function are called vestigial structures. These structures, such as the human tailbone or the appendix, are tiny remnants of once larger organs that were necessary to our distant ancestors for certain functions.

For example, the appendix was needed to digest food, but in modern humans, it serves no significant purpose. Vestigial structures may shrink in size because any traits that do not enhance an organism's fitness are not maintained across generations. Maintaining a full-sized, unused structure can reduce an organism's fitness by requiring extra energy to grow and maintain the structure, and by increasing the risk of potential maladies.

A 66-year-old patient's echocardiogram reveals a hypertrophied left ventricle, normal chamber volume, and a normal ejection fraction from the heart. what is this patient's most likely diagnosis

Answers

This is a case of a hypertrophic cardiomyopathy with preserved ejection fraction. A hypertrophied left ventricle is a echocardiographic sign that there is chronic stress put in the left ventricle, most commonly in overcoming high aortic pressures in patients with systemic hypertension. In this case, there is normal chamber volume and normal ejection fraction therefore the heart is functionally normal and ejection fraction is preserved.

Bacteria typically have _______, whereas eukaryotes have _______.
a. one chromosome that is circular; many chromosomes that are linear
b. several chromosomes that are circular; many chromosomes that are linear
c. one chromosome that is linear; many chromosomes that are circular
d. two chromosomes that are circular; eight chromosomes that are linear

Answers

A. is the best answer:

Bacteria typically have _one circular chromosome_, whereas eukaryotes have _many linear chromosomes_.

Why are some samples stained before viewing them?

Answers

Without staining them you wouldn't be able to see them

What will most likely happen if the plankton population decreases in this ocean system?

a.salmon will completely disappear from the ocean.

b.shrimp will have more difficulty finding food.

c.there will be a fast growth in the shrimp population.

d.humans will have more salmon available to eat?

Answers

The answer is B, shrimp will have more difficulty finding food.

As the population of planktons decreases in the ocean system, the shrimp population will find it more difficult to find the food. Thus, the correct option is B.

What is species relationship?

In the ocean ecosystem, plankton populations are the primary source of food for all the organisms which are living in the ocean and near the ocean. Planktons are divided into Zooplanktons and Phyto-planktons. Zooplanktons are motile while Phyto-planktons are non-motile. Phyto-planktons are responsible for the primary productivity of the ocean bodies.

Shrimps are the crustaceans or a type of shellfish. It is considered as seafood. The shrimps are dependent upon the planktonic species for their survival. As the number of planktons decreases in the ocean, the number of shrimp population also decreases as they do not get enough food for survival.

Therefore, the correct option is C.

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Why did Gregor Mendel study pea plants?

Answers

Pea plants had easily observable traits which consisted of 7. It was easier for him to manipulate them. And they grew fast.
Mendel studied pea plants because they reproduced sexually and had traits that were easily observable.

"in a population of 100, 65 of the people are homozygous dominant and 15 are homozygous recessive. what is the genotypic frequency of the homozygous dominant population, heterozygous population and homozygous recessive population.

Answers


Its easy to get the genotypic frequencies as follows;

1.       Homozygous dominant;

65/100 = 0.65

2.       Homozygous recessive;

 15/100 = 0.15

3.       To get heterozygous population;

100 - (65 + 15) = 20
20/100 = 0.2 

Why is the structure of dna called a double helix?
a.because dna is made of two strands of nucleotides wound together in a spiral.
b.because the number of copies of dna doubles with each round of pcr
c.because two copies of dna are inherited, one each from the mother and father
d.because each of the curved dna subunits appears twice whenever it appears submit for grading save and finish later?

Answers

A- DNA is a double stranded molecule :)

Based on lab exercise #2: magma, volcanism, and igneous rocks. what type of plate boundary is associated with the magma that formed sample #9?

Answers

Final answer:

The magma that formed sample #9 is likely associated with a subduction zone plate boundary, where felsic and intermediate compositions are typical.

Explanation:

The type of plate boundary associated with the magma that formed sample #9 from the lab exercise on magma, volcanism, and igneous rocks can be determined by understanding the tectonic settings and how they influence igneous rock formation. According to the information provided, most magmas form at plate boundaries due to pressure release, an increase in temperature, or the addition of volatiles. Specifically, composite volcanoes with felsic and intermediate magma compositions form above subduction zones, which occur at either ocean-ocean convergent boundaries or ocean-continent convergent boundaries.

Therefore, based on the description provided in Part V. Igneous rocks and tectonic environments ELABORATE 2, if the magma sample #9 has a felsic or intermediate composition, it is likely associated with a subduction zone plate boundary. This aligns with the learning outcomes from section 9.1.1, which include relating magma type with plate boundaries.

What do the amino acids phe, tyr and trp have in common?

Answers

They have aromatic rings.

Convert the temperature 49oC to kelvin

Answers

It should be 322.15. Hope it helps :)

the basic building block of life is

Answers

well atoms are the basic building blocks of life

Answer:

Cell

Explanation:

Cell is considered as a building block of any life form. A cell is the smallest unit of any living organism. When cell group together, they form tissues. and when tissues group together they form organs. The specific function of all organs is due to the constituting specialized cell which are able to perform  specific function. All cells are able to survive on its own as they are able to respire, digest, produce energy, loco mote and even reproduce by themselves.

Hence, cell is the basic building block of life

A student conducts an experiment to determine how the amount of water given to a plant affects its growth. What is the dependent variable for this experiment? a. the amount of water b. the height of the plant c. the amount of sunlight d. the amount of soil Please select the best answer from the choices provided

Answers

I think the answer to this is the height of the plant. The amount of water is the independent variable and the amount of sunlight and soil arent included in this experiment. 

Answer: b. the height of the plant.

In an experimental set up an independent variable is the one which can be manipulated or change to observe the effects of such changes or manipulation on dependent variable. For example, plant growth is a dependent variable because it is dependent on independent variables such as amount of sunlight available, amount of fertilizers and water provided.

In this experiment, it is to be determined that how the amount of water given to a plant affects its growth. Here, water is an independent variable which can be change in the experiment and the affect of change can be observed on plant growth which is a dependent variable. A height represents the growth of the plant therefore, height of the plant is the dependent variable.

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