Discharge planning for the client prescribed tetracycline will include which instruction?

Correct Answer: C

Rationale: Tetracycline, a broad-spectrum antibiotic, requires specific administration instructions to ensure efficacy. It binds to divalent cations like calcium (in milk), magnesium (in antacids), and iron (in supplements), forming insoluble chelates that reduce absorption, rendering it ineffective. The instruction 'Do not take the medication with milk' is critical to avoid this interaction, ensuring therapeutic levels are achieved. Taking it with antacids or iron similarly impairs absorption, making these incorrect and potentially harmful suggestions. Decreasing vitamins is irrelevant, as vitamins don't typically interfere unless combined with minerals. This guidance aligns with tetracycline's pharmacokinetics, emphasizing timing away from meals or supplements containing these ions. Effective discharge teaching prevents treatment failure, especially for infections requiring consistent drug levels, making C the priority instruction for the client's understanding and adherence.

Correct Answer: D

Rationale: Heparin is an anticoagulant medication that can lead to excessive bleeding if overdosed. Protamine sulfate is the specific antidote for heparin overdose. It works by binding to heparin and neutralizing its anticoagulant effects. This helps to reverse the effects of heparin and prevent further bleeding complications. In cases of heparin overdose or when rapid reversal of heparin's anticoagulant effects is required, protamine sulfate should be administered. Naloxone is used as an antidote for opioid overdose, Ibutilide is a antiarrhythmic medication used for atrial fibrillation, and Methylphenidate is a stimulant medication used for ADHD.

Correct Answer: D

Rationale: Luteinizing hormone (LH) from the pituitary stimulates testosterone production in testicular Leydig cells, its primary role in men, driving male physiology. Sperm production is regulated by FSH, not LH. Secondary sex characteristics and sex organ growth depend on testosterone, which LH indirectly supports by controlling its synthesis, not directly managing. Testosterone regulation is LH's specific function, triggering steroidogenesis, essential for fertility and masculinity, distinct from FSH's gamete role.

Correct Answer: A

Rationale: Chemotherapy-induced vomiting is primarily caused by the stimulation of neuroreceptors in the medulla oblongata, particularly the chemoreceptor trigger zone (CTZ). The CTZ is sensitive to chemical stimuli and responds to the presence of chemotherapy drugs by triggering the vomiting reflex. While irritation of the gastric mucosa can contribute to nausea, it is not the primary mechanism. Autonomic instability and inhibition of catecholamines are not directly related to chemotherapy-induced vomiting. Anti-emetic medications often target these neuroreceptors to prevent or reduce vomiting.

Correct Answer: C

Rationale: Mast cell stabilizers prevent histamine release . Decongestants relieve, not prevent. C offers proactive prevention, making it key.