Nokea
What is the initial major sign of acute renal failure?
- A. Oliguria
- B. Hematuria
- C. Proteinuria
- D. Glycosuria
Correct Answer: A
Rationale: Oliguria, or reduced urine output, is often the initial major sign of acute renal failure. This reduction in urine output indicates that the kidneys are not functioning properly. Hematuria (blood in urine), proteinuria (presence of protein in urine), and glycosuria (presence of glucose in urine) are not typically the initial major signs of acute renal failure. While they may be present in certain conditions, oliguria is the most common and critical indicator of acute renal failure.
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Where is Vitamin K synthesized?
- A. by bacteria in the GI tract
- B. by the body by sunlight
- C. deficiency is called beriberi
- D. found in vegetable oils
Correct Answer: A
Rationale: Vitamin K is synthesized by bacteria in the gastrointestinal tract. Choice B is incorrect as the synthesis of Vitamin D, not K, can be induced by sunlight exposure. Choice C is incorrect as beriberi is a condition caused by thiamine (Vitamin B1) deficiency, not Vitamin K. Choice D is incorrect as Vitamin E is commonly found in vegetable oils, not Vitamin K.
What type of drug is lamivudine, used for the management of HIV infection?
- A. CCR5 antagonist
- B. fusion inhibitor
- C. nucleoside reverse transcriptase inhibitor
- D. protease inhibitor
Correct Answer: C
Rationale: Lamivudine belongs to the class of nucleoside reverse transcriptase inhibitors (NRTIs), making choice C the correct answer. NRTIs like lamivudine work by inhibiting the reverse transcriptase enzyme, an essential component for the HIV virus to replicate. Choices A, B, and D are incorrect because lamivudine does not function as a CCR5 antagonist, fusion inhibitor, or protease inhibitor in the management of HIV infection.
Clients may benefit from slightly higher fat intakes than are normally recommended if they have:
- A. congestive heart failure
- B. cerebrovascular accident
- C. peripheral vascular disease
- D. chronic obstructive pulmonary disease
Correct Answer: D
Rationale: In chronic obstructive pulmonary disease (COPD), higher fat intake can be beneficial because it provides more calories with less respiratory burden compared to carbohydrates. Choices A, B, and C are incorrect because congestive heart failure, cerebrovascular accident, and peripheral vascular disease do not specifically benefit from higher fat intakes as in COPD.
In order to establish and maintain successful breastfeeding, which practice should a lactating mother try to follow?
- A. Initiate breastfeeding within 24 hours of birth
- B. Breastfeed on a schedule of every 2 to 3 hours
- C. Give a pacifier to an infant between feedings
- D. Find a breastfeeding support group to troubleshoot problems
Correct Answer: D
Rationale: The correct answer is D. Finding a breastfeeding support group is crucial for a lactating mother to establish and maintain successful breastfeeding. This group can offer valuable advice, tips, and encouragement, helping the mother troubleshoot any issues that may arise during breastfeeding. Choices A, B, and C are incorrect because breastfeeding is a natural process that should not be overly scheduled, and giving a pacifier between feedings can interfere with establishing proper breastfeeding techniques.
Which vitamin is essential for proper blood clotting?
- A. Vitamin A
- B. Vitamin E
- C. Vitamin K
- D. Vitamin C
Correct Answer: C
Rationale: Vitamin K is vital for the synthesis of clotting factors, which are necessary for proper blood clotting. Vitamin A (Choice A) is important for vision and skin health, not blood clotting. Vitamin E (Choice B) is an antioxidant that helps protect cells from damage but is not directly involved in blood clotting. Vitamin C (Choice D) is essential for collagen synthesis and a healthy immune system, but it does not play a direct role in blood clotting.