Nokea
Which macrolide antibiotic that can be given once a day for 3 days for empirical treatment of ENT, respiratory and genital infections?
- A. Erythromycin
- B. Azithromycin
- C. Clarithromycin
- D. Roxithromycin
Correct Answer: B
Rationale: The correct answer is B: Azithromycin. It is preferred for short-term treatment due to its long half-life allowing once-daily dosing. Azithromycin has a broad spectrum of activity against many pathogens causing ENT, respiratory, and genital infections. It is well-tolerated and has fewer drug interactions. Other choices like A: Erythromycin have a higher frequency of dosing and more side effects. C: Clarithromycin and D: Roxithromycin are not typically given once daily for 3 days.
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A patient with adrenal tumor has symptoms of hypertension, edema, hypernatremia and hypokalemia. Which drug would be most likely to prescribe to antagonize the renal and systemic side effects of the hormone excess?
- A. Spironolactone
- B. Bumetanide
- C. Furosemide
- D. Acetazolamide
Correct Answer: A
Rationale: The correct answer is A: Spironolactone. Spironolactone is a potassium-sparing diuretic that works by antagonizing aldosterone, which is responsible for the symptoms of hypertension, edema, hypernatremia, and hypokalemia seen in adrenal tumor. By blocking aldosterone receptors, spironolactone helps to reduce sodium reabsorption and potassium excretion, thus counteracting the hormonal effects.
Bumetanide (choice B) and Furosemide (choice C) are loop diuretics that primarily work by inhibiting sodium reabsorption in the loop of Henle and are unlikely to be as effective in this scenario. Acetazolamide (choice D) is a carbonic anhydrase inhibitor that works in the proximal tubule and is not indicated for the specific hormonal effects seen in this case.
Thiazide diuretics may produce an increase in blood levels of uric acid and:
- A. Potassium
- B. BUN
- C. Urea
- D. Glucose
Correct Answer: D
Rationale: Thiazide diuretics can lead to hyperglycemia by reducing insulin sensitivity. This can result in increased blood glucose levels. Thiazides also elevate uric acid levels by reducing its excretion. Therefore, the correct answer is D (Glucose).
Incorrect choices:
A (Potassium) - Thiazides typically cause hypokalemia, not hyperkalemia.
B (BUN) and C (Urea) - Thiazides may cause a slight increase in BUN and serum creatinine levels due to reduced kidney function, but not as significantly as glucose levels.
Which of the following hormones is secreted by corpus albicans?
- A. Estrogen
- B. Progesterone
- C. Luteinizing hormone
- D. No hormones are secreted by the corpus albicans
Correct Answer: D
Rationale: The correct answer is D because the corpus albicans is the end stage of the corpus luteum, which degenerates if fertilization does not occur. As a result, it no longer secretes hormones. Estrogen and progesterone are secreted by the corpus luteum, not the corpus albicans. Luteinizing hormone is produced by the anterior pituitary gland, not by the corpus albicans.
Tubular reabsorption
- A. eliminates wastes from the body
- B. occurs mostly in the distal convoluted tubule
- C. usually helps control blood pH by removing H+ from the filtrate
- D. returns 99% of the water filtered from the glomerulus to the blood
Correct Answer: D
Rationale: The correct answer is D because tubular reabsorption refers to the process of reabsorbing substances, including water, from the renal tubules back into the bloodstream. This process occurs mainly in the proximal convoluted tubule and loop of Henle, not the distal convoluted tubule as stated in choice B. Choice A is incorrect because tubular reabsorption does not specifically eliminate wastes; that is the role of tubular secretion. Choice C is incorrect because tubular reabsorption does not directly control blood pH by removing H+ ions from the filtrate; that is primarily done through the kidneys' buffering systems. Overall, choice D is the most accurate as it reflects the primary function of tubular reabsorption in returning water back to the blood.
A woman states that 2 weeks ago she had a urinary tract infection that was treated with an antibiotic. As a part of the interview, the nurse should ask, 'Have you noticed any':
- A. Changes in your urination patterns?
- B. Excessive vaginal bleeding?
- C. Unusual vaginal discharge or itching?
- D. Changes in your desire for intercourse?
Correct Answer: C
Rationale: Rationale:
C is correct because UTI treatment can disrupt the vaginal microbiome, leading to yeast infection symptoms like unusual discharge or itching. A is relevant but focuses on only one aspect. B and D are unrelated to UTI treatment outcomes.