Nokea
Patients with pheochromocytoma should avoid which of the following classes of drugs because of the possibility of developing hypertensive crisis?
- A. Expectorants
- B. Beta-2-agonists
- C. Antitussives
- D. Antihistamines
Correct Answer: B
Rationale: Beta-2-agonists can stimulate catecholamine release in pheochromocytoma, risking hypertensive crisis; other classes are safer.
You may also like to solve these questions
Which of the following is the mechanism of action of iodides:
- A. Inhibits organification of iodine
- B. By inhibiting \mathrm{Na}+/ \mathrm{l} - simporter reduce iodine transport in thyroid gland
- C. Inhibits production of trioodthyronine form tetraiodthyronine on periphery
- D. Stimulates peroxidase
Correct Answer: A
Rationale: Iodides inhibit iodine organification, reducing thyroid hormone synthesis in high doses.
A nurse is providing teaching for a client who has a new prescription for Metformin. Which of the following adverse effects of Metformin should be correct the client to report to the provider?
- A. Somnolence
- B. Constipation
- C. Fluid retention
- D. Weight gain
Correct Answer: A
Rationale: Somnolence could indicate lactic acidosis, a rare but serious metformin side effect to report.
The nurse admits a patient to the unit and learns the patient has recently been diagnosed with chronic renal failure but has not informed the primary care provider of this diagnosis. What is the nurse's first priority?
- A. Administer medications ordered immediately.
- B. Maintain the patient's confidentiality.
- C. Call the admitting physician immediately.
- D. Provide teaching about chronic renal failure
Correct Answer: C
Rationale: Renal failure affects drug clearance; informing the physician ensures safe therapy adjustments.
While receiving treatment for acute pulmonary edema, a woman complains of tinnitus and vertigo.
- A. Clomiphene
- B. Hydrochlorothiazide
- C. Furosemide
- D. Mifepristone
Correct Answer: C
Rationale: Furosemide, a loop diuretic, can cause ototoxicity (tinnitus, vertigo) at high doses.
A prescription needs to be written for:
- A. Legend drugs
- B. Most controlled drugs
- C. Medical devices
- D. All of the above
Correct Answer: D
Rationale: Prescriptions are required for legend drugs (prescription-only), most controlled drugs, and certain medical devices , per regulatory standards.