The bile salts are synthesized from

fatty acids

testosterone

cholesterol

lecithin

Answer and Explanation

The Correct Answer is C

Choice A reason:
Fatty acids are essential components of many lipids, but they are not the primary building blocks of bile salts. Bile salts are synthesized from cholesterol. Fatty acids mainly function as energy storage molecules and are involved in forming complex lipids, like triglycerides and phospholipids. They don't participate directly in the production of bile salts, which are crucial for digesting and absorbing dietary fats.

Choice B reason:
Testosterone is a steroid hormone that plays a vital role in male reproductive tissues and secondary sexual characteristics. It is not involved in the synthesis of bile salts. Bile salts are derived from cholesterol, not hormones. Testosterone’s primary function is related to endocrine activities rather than hepatic functions like bile salt synthesis.

Choice C reason:
Cholesterol is the correct answer. Bile salts are synthesized from cholesterol in the liver. This process involves the conversion of cholesterol into bile acids, which are then conjugated with amino acids to form bile salts. These bile salts are critical for the digestion and absorption of fats in the small intestine. The liver’s conversion of cholesterol to bile salts helps in maintaining cholesterol homeostasis in the body.

Choice D reason:
Lecithin is a type of phospholipid that plays a significant role in cell membrane structure and function. While it is an important component of bile, it is not the substance from which bile salts are synthesized. Lecithin helps in the emulsification of fats in the digestive process but is not a precursor to bile salts. The synthesis of bile salts specifically involves cholesterol.

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Correct Answer is B

Explanation

Choice A reason:
Amphotericin B is an antifungal medication and is not used to treat viral infections such as herpes-zoster. This choice is incorrect because it does not target the herpes virus, which causes conditions like shingles.
Choice B reason:
Acyclovir is an antiviral medication specifically used to treat infections caused by the herpes virus, including herpes-zoster (shingles). It works by inhibiting viral replication, reducing the severity and duration of symptoms. This makes it the correct choice for treating herpes-zoster infection.
Choice C reason:
Azole antifungals are used to treat fungal infections, not viral infections like herpes-zoster. This choice is incorrect as it does not relate to the treatment of the herpes virus.
Choice D reason:
Tamiflu is an antiviral medication used to treat influenza, not herpes-zoster. While it targets a viral infection, it is specific to the influenza virus and not effective against the herpes virus. Therefore, this choice is incorrect.

A. Stenosis B. Regurgitation C. Insufficiency D. Incompetence

Correct Answer is A

Explanation

Choice A reason:
Stenosis is characterized by the constriction and narrowing of the valve opening, which causes the valve leaflets to fail to open completely. This condition restricts blood flow through the valve, leading to increased pressure in the heart and reduced blood flow to the body or lungs, depending on which valve is affected.

Choice B reason:
Regurgitation refers to the condition where the valve does not close properly, allowing blood to flow backward. This is different from stenosis, where the valve opening is narrowed and does not allow sufficient blood flow forward.

Choice C reason:
Insufficiency is another term for regurgitation and involves the backward flow of blood due to improper closure of the valve. It does not describe the condition where the valve opening is narrowed and restricts forward blood flow.

Choice D reason:
Incompetence also refers to the inability of the valve to close properly, leading to regurgitation. It is not used to describe the narrowing of the valve opening, which is the defining characteristic of stenosis.

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The bile salts are synthesized from

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient comes to the clinic for a herpes-zoster infection? (Select all that apply)

Correct Answer is B

Explanation

Which valvular condition is characterized by the valve opening being constricted and narrowed, causing the valve leaflets, or cusps, to fail to open completely?

Correct Answer is A

Explanation

Why are Verapamil and Diltiazem considered to be antidysrhythmic medications but Nifedipine is not, if all three medications are calcium channel blockers?

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The bile salts are synthesized from

After starting an antiviral protease inhibitor, a patient with HIV telephones the nurse, complaining, "I'm so hungry and thirsty all the time! I'm urinating 10 or 12 times a day." The nurse recognizes these findings to be consistent with:

When a patient asks the nurse what is the most common cause of myocardial ischemia, which statement is the correct response?

A patient has begun taking an HMG-COA reductase inhibitor (statins). Which statement about this class of drugs made by the nurse during patient education would be inappropriate?

A 54-year-old reports vomiting blood. Tests reveal portal hypertension. Which of the following is the most likely cause of this condition?

A nurse is discussing intravenous Amphotericin B treatment with a nursing student who is about to care for a patient with a systemic fungal infection. Which statement by the student indicates a need for further teaching?