The drug that will most likely be used for treatment of erectile dysfunction (ED) is

Correct Answer: D

Rationale: Sildenafil (Viagra), a phosphodiesterase-5 inhibitor, treats erectile dysfunction (ED) by enhancing penile blood flow, a first-line therapy. Leuprolide suppresses testosterone for prostate cancer, worsening ED. Finasteride and tamsulosin, for BPH, don't target ED and may cause it. Sildenafil's vascular action offers rapid efficacy, making it the go-to choice.

Correct Answer: D

Rationale: Flushing the newborn's eyes after instilling erythromycin ointment is incorrect because it would remove the medication, rendering it ineffective. The ointment is applied to the conjunctival sacs to prevent ophthalmia neonatorum, a bacterial infection that can occur during delivery. Cleaning the eyes before administration and applying the ointment within an hour after delivery are correct steps. Therefore, the statement about flushing the eyes indicates a need for further education.

Correct Answer: C

Rationale: Chronic hepatitis C (HCV) treatment targets viral clearance. Pegylated interferon alfa boosts immunity, lamivudine treats HBV, not HCV, so that's incorrect. Adefovir also targets HBV, not HCV. Pegylated interferon alfa with ribavirin, an antiviral, is a historical standard for HCV, enhancing sustained virologic response across genotypes, the recommended combo. Adefovir/lamivudine suits HBV, oseltamivir/zanamivir influenza. Ribavirin's synergy with interferon was key before direct-acting antivirals, effective for this condition.

Correct Answer: A

Rationale: The unlabeled use for a medication refers to a use that is not approved by regulatory agencies but has shown effectiveness in clinical practice. In this case, the unlabeled use for a medication might be to treat PTSD (Post-Traumatic Stress Disorder). While the medication may not be specifically indicated for this condition, it may have shown benefits in managing the symptoms of PTSD based on clinical experience or research studies. It is important to note that using a medication for an unlabeled use should always be done under the supervision of a healthcare professional.

Correct Answer: A

Rationale: Furosemide is a loop diuretic commonly used to treat conditions involving edema such as heart failure, liver disease, and kidney disorders. By promoting diuresis (increased urine production), furosemide helps the body eliminate excess fluid, leading to a decrease in edema or swelling. Therefore, a patient given furosemide for diuresis should experience a decrease in edema as the drug acts on the kidneys to increase urine output and eliminate extra fluids from the body.