The nursing instructor teaches student nurses about male reproductive function and the role of follicle-stimulating hormone (FSH). The instructor evaluates learning has occurred when the students make which statement?

Correct Answer: A

Rationale: Follicle-stimulating hormone (FSH) from the pituitary targets Sertoli cells in the testes to drive spermatogenesis, regulating sperm production and supporting male fertility. Androgen production, mainly testosterone, falls under luteinizing hormone (LH), not FSH, though both hormones interplay in reproduction. Testosterone synthesis in Leydig cells is LH-driven, not FSH, which focuses on sperm maturation. Progesterone, minimal in males, isn't FSH-regulated, being more female-centric. FSH's role in spermatogenesis is specific, distinguishing it from hormonal regulation and highlighting its importance in reproductive physiology, ensuring students understand its targeted action over broader endocrine effects.

Correct Answer: C

Rationale: Phenobarbital, a barbiturate, binds to a distinct site on the GABA_A receptor, enhancing GABA's inhibitory effects by prolonging chloride channel opening. At high doses, it uniquely can directly open these channels without GABA, leading to profound CNS depression—useful in anesthesia or seizure control but risky due to overdose potential. Diazepam, a benzodiazepine, also acts on GABA_A receptors but only enhances GABA's effect, not independently opening channels, limiting its action to GABA availability. Ethanol affects GABA_A receptors indirectly and lacks this specific high-dose capability. Baclofen targets GABA_B receptors, influencing potassium channels, not chloride, and is unrelated to this mechanism. Dronabinol, a cannabinoid, has no GABA_A activity. Phenobarbital's ability to independently activate chloride channels at high doses distinguishes it, aligning with the scenario described and explaining its utility and risks in clinical settings.

Correct Answer: A

Rationale: In the case of a hypovolemic shock due to significant blood loss, the primary concern is to restore the lost blood volume quickly. Packed Red Blood Cells (PRBCs) contain a high concentration of red blood cells and are used to replenish oxygen-carrying capacity in cases of hemorrhage. PRBCs are the most appropriate blood product in this scenario as they can effectively increase the oxygen-carrying capacity of the blood without overloading the patient with excess fluid volume like whole blood. Whole blood contains not only red blood cells but also plasma and other components, which may not be necessary for immediate volume resuscitation. Cryoprecipitate and Fresh Frozen Plasma (FFP) are usually indicated for specific coagulation factor deficiencies and are not the primary choice for treating hypovolemic shock. Thus, in this case, PRBCs are the most suitable blood product to address the acute blood loss and restore

Correct Answer: A

Rationale: Follicle-stimulating hormone (FSH) from the pituitary targets Sertoli cells in the testes to drive spermatogenesis, regulating sperm production and supporting male fertility. Androgen production, mainly testosterone, falls under luteinizing hormone (LH), not FSH, though both hormones interplay in reproduction. Testosterone synthesis in Leydig cells is LH-driven, not FSH, which focuses on sperm maturation. Progesterone, minimal in males, isn't FSH-regulated, being more female-centric. FSH's role in spermatogenesis is specific, distinguishing it from hormonal regulation and highlighting its importance in reproductive physiology, ensuring students understand its targeted action over broader endocrine effects.

Correct Answer: D

Rationale: Bisoprolol is the drug of choice for older adults. It is not associated with as many adverse effects in the elderly and regular dosing profiles can be used. This drug does not have an established pediatric dosage. Although the 37-year-old patient is an adult, there are additional choices for this patient, with a more favorable adverse effect profile. The nurse should consider age-related factors when selecting antihypertensive medications.