The nurse administers lorazepam (Ativan) to a client with anxiety. Which statement by the client indicates understanding of the medication?

Correct Answer: B

Rationale: Lorazepam, a benzodiazepine, reduces anxiety via GABA enhancement but potentiates CNS depression with alcohol, risking sedation or respiratory failure. Avoiding alcohol shows understanding of this danger, key for safety. Driving is unsafe due to drowsiness. It doesn't cure anxiety 'it's symptomatic relief. Extra doses risk dependence. Avoiding alcohol aligns with lorazepam's pharmacology, critical in anxiety management where misuse is common, making B the statement reflecting proper education.

Correct Answer: D

Rationale: Cutaneous candidiasis needs topical antifungals. Griseofulvin treats dermatophytes orally, not candida topically. Beclometasone, a steroid, worsens fungal growth. Aciclovir targets herpes, not fungi. Amphotericin is IV for systemic use. Nystatin binds ergosterol in candida membranes, most effective topically for skin infections, widely used for its specificity and safety.

Correct Answer: A

Rationale: Benzodiazepines are a class of psychoactive drugs that primarily work by enhancing the effect of a neurotransmitter called gamma-aminobutyric acid (GABA) in the brain. GABA is an inhibitory neurotransmitter that reduces the activity of nerve cells, resulting in a calming effect on the central nervous system. By increasing GABA activity, benzodiazepines help reduce feelings of anxiety and produce sedation or relaxation. This is why the correct answer is that all benzodiazepines reduce anxiety and produce sedation.

Correct Answer: B

Rationale: Diuretics treat CHF edema, but tinnitus suggests a side effect. Furosemide , a loop diuretic, causes ototoxicity (ringing in ears) at high doses. Acetazolamide , a carbonic anhydrase inhibitor, doesn't typically cause this. Hydrochlorothiazide , a thiazide, rarely affects hearing. Mannitol , an osmotic diuretic, and Spironolactone (E), an aldosterone antagonist, lack ototoxicity. Furosemide's rapid action on edema fits CHF, but its cochlear toxicity explains the symptom, common in loop diuretics.

Correct Answer: D

Rationale: An air traffic controller needs a non-sedating allergy treatment. Fexofenadine , a second-generation antihistamine, avoids drowsiness. Chlorpheniramine , Diphenhydramine , and Doxylamine sedate. Hydroxylamine (E) isn't a drug. Fexofenadine ensures safety and efficacy for his job.