Nokea
The combination of propranolol & nifedipine in essential hypertension is used because
- A. CNS effects of propanolol are prevented
- B. Pedal edema of nifedipine is prevented
- C. Alteration of serum lipids by propranolol is prevented
- D. Reflex sympathetic activity of nifedipine is prevented
Correct Answer: D
Rationale: Propranolol (beta-blocker) counters nifedipine's (calcium channel blocker) reflex tachycardia.
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A patient on imipenem/cilastatin is at risk for which adverse effect?
- A. Allergic reaction
- B. Seizures
- C. C. difficile infection
- D. All of the above
Correct Answer: D
Rationale: Imipenem/cilastatin can cause allergic reactions, seizures (neurotoxicity), and C. difficile infection, making all potential risks.
A patient who is taking isoniazid (INH) as part of a two-drug tuberculosis treatment regimen reports tingling of the fingers and toes. The nurse will recommend discussing which treatment with the provider?
- A. Adding pyrazinamide
- B. Changing to ethambutol
- C. Increasing oral fluid intake
- D. Taking pyridoxine (B6)
Correct Answer: D
Rationale: Pyridoxine prevents INH-induced neuropathy (tingling); changing drugs or fluids doesn't address this. Peripheral neuropathy is an adverse reaction to INH, so pyridoxine is usually given to prevent this.
Dopamine is:
- A. Alpha and beta agonist
- B. Beta agonist
- C. A beta blocking agent
- D. Alpha blocking agent
Correct Answer: A
Rationale: Dopamine activates alpha and beta receptors.
This drug is a respiratory stimulant:
- A. Doxapram
- B. Promethazine
- C. Dornase α
- D. Oxygen
Correct Answer: A
Rationale: Doxapram stimulates breathing by acting on the respiratory center in the brainstem.
A 19-year-old male was started on risperidone. Monitoring for risperidone includes observing for common side effects, including:
- A. Bradykinesia, akathisia, and agitation
- B. Excessive weight gain
- C. Hypertension
- D. Potentially fatal agranulocytosis
Correct Answer: A
Rationale: Risperidone frequently causes movement disorders like bradykinesia and akathisia.