Nokea
Beta-blockers decrease triglyceride levels and increase levels of HDL cholesterol.
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: Beta-blockers typically increase triglycerides and decrease HDL cholesterol, opposite to the statement.
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Ciprofloxacin increases the toxicity of theophylline by
- A. Inhibiting metabolism
- B. Decreasing excretion
- C. Decrease seizure threshold
- D. Promote absorption
Correct Answer: B
Rationale: Ciprofloxacin reduces theophylline clearance, decreasing excretion.
A 24 year-old man with a history of substance abuse is suffering from generalized anxiety disorder. Which of the following drugs would be the most suitable for the management of his condition?
- A. Zolpidem
- B. Buspirone
- C. Midazolam
- D. Triazolam
Correct Answer: B
Rationale: Buspirone, a non-benzodiazepine, treats anxiety without dependence risk.
Beta blockers have favorable effects on survival and disease progression in heart failure. Treatment should be initiated when the:
- A. Symptoms are severe
- B. Patient has not responded to other therapies
- C. Patient has concurrent hypertension
- D. Left ventricular dysfunction is diagnosed
Correct Answer: D
Rationale: Beta blockers are initiated upon diagnosis of left ventricular dysfunction to improve outcomes.
A pharmacology student asks the instructor what an accurate description of a drug agonist is. What is the instructor's best response?
- A. A drug that reacts with a receptor site on a cell preventing a reaction with another chemical on a different receptor site
- B. A drug that interferes with the enzyme systems that act as catalyst for different chemical reactions
- C. A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site
- D. A drug that reacts with receptor sites to block normal stimulation, producing no effect
Correct Answer: C
Rationale: Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with some receptor sites preventing the reaction of another chemical with a different receptor site. Drug-enzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.
A nurse is teaching a client who has a new prescription for Diphenhydramine for allergic Rhinitis. The nurse should instruct the client to monitor for which of the following adverse reactions of this medication? (Select one that does not apply.)
- A. Dry mouth
- B. Nonproductive cough
- C. Urinary Hesitation
- D. Drowsiness
Correct Answer: B
Rationale: Diphenhydramine causes dry mouth , drowsiness , and urinary hesitation due to anticholinergic effects.