Nokea
The probable cause of leucopenia and agranulocytosis:
- A. Diiodthironine
- B. Potassium iodide
- C. Mercazolil
Correct Answer: C
Rationale: Mercazolil (methimazole) can cause agranulocytosis and leukopenia as serious side effects by affecting bone marrow function.
You may also like to solve these questions
A nurse is providing instructions to the parent of an adolescent client who has a new prescription for Albuterol, PO. Which of the following instructions should the nurse include?
- A. You can take this medication to abort an acute asthma attack.
- B. Tremors are an adverse effect of this medication.
- C. Prolonged use of this medication can cause hyperglycemia.
- D. This medication can slow skeletal growth rate.
Correct Answer: B
Rationale: Tremors are a common side effect of albuterol due to beta-agonist stimulation.
Which of the following statements about aminoglycosides is false?
- A. They have short half-lives
- B. They are bactericidal
- C. They exacerbate weakness in myasthenia gravis patients
- D. None of the Above
Correct Answer: D
Rationale: All statements are true: aminoglycosides have short half-lives (2-3 hours), are bactericidal, and can worsen myasthenia gravis by neuromuscular blockade.
The mean weight of 500 college students is 70 kg and the standard deviation is 3 kg. Assuming that the weight is normally distributed, determine how many students weigh between 60 kg and 75 kg.
- A. 450
- B. 476
- C. 480
- D. 490
Correct Answer: B
Rationale: Convert to z-scores: (60-70)/3 = -3.33, (75-70)/3 = 1.67. P(-3.33 < Z ≤ 1.67) = P(Z ≤ 1.67) - P(Z ≤ -3.33) = 0.9525 - (1 - 0.9996) = 0.9521. Then, 0.9521 * 500 ≈ 476, as per the document.
Jim is being treated for hypertension. Because he has a history of heart attack, the drug chosen is atenolol. Beta blockers treat hypertension by:
- A. Increasing heart rate to improve cardiac output
- B. Reducing vascular smooth muscle tone
- C. Increasing aldosterone-mediated volume activity
- D. Reducing aqueous humor production
Correct Answer: B
Rationale: Beta blockers like atenolol reduce vascular tone and heart rate, lowering blood pressure.
The nurse is teaching a patient about rifampin. Which statement by the patient indicates understanding of the teaching?
- A. I should not wear soft contact lenses while taking rifampin
- B. I will need regular eye examinations while taking this drug
- C. I will report orange urine to my provider immediately
- D. I understand that renal toxicity is a common adverse effect
Correct Answer: A
Rationale: Rifampin stains fluids red-orange, risking soft lens damage; eye exams are for ethambutol, and urine color is benign. Patients taking rifampin should be warned that urine, feces, saliva, sputum, sweat, and tears may turn a harmless red-orange color.