University of Texas, Arlington NURS 5334; NURS5334 Advanced Pharmacology Quiz: Nurse Practitioner Level | Answered and explained 100% Updated Fall 2025/26.

University of Texas, Arlington NURS 5334; NURS5334 Advanced Pharmacology Quiz: Nurse Practitioner Level | Answered and explained 100% Updated Fall 2025/26. Answers and Explanations: See Last Page Advanced Pharmacology Quiz: Nurse Practitioner Level Antimicrobials (12 Questions) 1. Which of the following best explains the mechanism of action of beta-lactam antibiotics? A) Inhibit bacterial folic acid synthesis B) Inhibit protein synthesis at the 30S ribosomal subunit C) Inhibit transpeptidation involved in bacterial cell wall synthesis D) Disrupt DNA gyrase and topoisomerase IV function 2. Which cephalosporin generation would be most appropriate for treating a hospitalized patient with suspected Pseudomonas aeruginosa pneumonia? A) First-generation (e.g., cefazolin) B) Second-generation (e.g., cefuroxime) C) Third-generation (e.g., ceftriaxone) D) Fourth-generation (e.g., cefepime) 3. Vancomycin is indicated as the first-line treatment in which of the following scenarios? A) Community-acquired pneumonia caused by Streptococcus pneumoniae B) Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia C) Uncomplicated urinary tract infection D) Early syphilis in a penicillin-allergic patient 4. The peak nephrotoxic and ototoxic risks of aminoglycoside therapy are due to their accumulation in which anatomical locations? A) Pulmonary alveoli and alveolar macrophages B) Renal tubular cells and cochlear hair cells C) Hepatic sinusoidal cells and biliary ducts D) Intestinal epithelial cells and Peyer’s patches 5. The clinical efficacy of oral tetracyclines is reduced when co-administered with which of the following? A) High-fat meals B) Ferrous sulfate supplements C) Beta-blockers D) ACE inhibitors 6. Which of the following macrolides has the greatest potential for significant CYP3A4-mediated drug interactions? A) Azithromycin B) Clarithromycin C) Fidaxomicin D) Telithromycin 7. Clindamycin is most strongly associated with which potentially life-threatening adverse effect? A) Hemolytic anemia B) Hepatic failure C) Clostridioides difficile-associated diarrhea D) Stevens-Johnson Syndrome 8. What is the primary concern when co-administering linezolid with selective serotonin reuptake inhibitors (SSRIs)? A) QT prolongation B) Risk of serotonin syndrome C) Myelosuppression D) Increased hepatic metabolism 9. Sulfonamides and trimethoprim exert their antimicrobial effect through inhibition of which of the following pathways? A) Bacterial DNA replication B) Cell wall synthesis C) Folic acid synthesis D) RNA polymerase activity 10. Which of the following is the primary reason fluoroquinolones are no longer recommended for routine use in uncomplicated infections? A) High cost B) Narrow antimicrobial spectrum C) Significant risk of disabling tendon and CNS toxicities D) Ineffectiveness against gram-negative pathogens 11. What is the unique mechanism of action of daptomycin, differentiating it from other antibiotics used for resistant gram-positive infections? A) DNA inhibition via topoisomerase binding B) Inhibition of the bacterial cell membrane potential C) Disruption of protein elongation at the ribosome D) Beta-lactam ring cleavage and transpeptidase inhibition 12. What potentially dangerous interaction must be avoided during metronidazole therapy? A) Calcium supplementation B) Dairy products C) Alcohol consumption D) High-protein diets Gastrointestinal (8 Questions) 13. Proton pump inhibitors (PPIs) like omeprazole are most accurately described as: A) Reversible inhibitors of histamine H2 receptors B) Antacids that neutralize gastric acid C) Irreversible blockers of the H+/K+ ATPase proton pump D) Cytoprotective agents enhancing mucosal defenses 14. Which adverse effect is commonly associated with chronic use of aluminum-based antacids? A) Diarrhea B) Constipation C) Hyperkalemia D) Hypocalcemia 15. What is a significant drug interaction associated with cimetidine use? A) Enhances renal clearance of digoxin B) Inhibits CYP450 enzymes leading to increased serum levels of other drugs C) Potentiates the effects of antacids D) Increases hepatic conjugation of bilirubin 16. Why is sucralfate typically administered on an empty stomach before meals? A) To enhance absorption via gastric mucosa B) To promote activation by gastric acid for mucosal binding C) To decrease systemic bioavailability and toxicity D) To avoid chelation with dietary calcium 17. What is a contraindication to the use of loperamide in patients with diarrhea? A) Traveler’s diarrhea B) Opioid-induced constipation C) Diarrhea due to inflammatory bowel disease with bloody stools D) Irritable bowel syndrome without alarm features 18. Which agent is a chloride channel activator used in the treatment of chronic idiopathic constipation? A) Psyllium B) Senna C) Lubiprostone D) Polyethylene glycol 19. Which is considered the safest antiemetic for nausea and vomiting during the first trimester of pregnancy? A) Metoclopramide B) Doxylamine-pyridoxine combination C) Ondansetron D) Scopolamine 20. Which antiemetic exerts its effect by antagonizing dopamine D2 receptors in the chemoreceptor trigger zone? A) Ondansetron B) Diphenhydramine C) Metoclopramide D) Aprepitant Women’s Health (8 Questions) 21. Unopposed estrogen therapy increases the risk of which of the following malignancies in women with an intact uterus? A) Breast cancer B) Endometrial cancer C) Ovarian cancer D) Cervical cancer 22. Which mechanism best explains how ulipristal acetate functions as emergency contraception? A) Inhibits sperm motility B) Blocks progesterone receptors, delaying ovulation C) Enhances cervical mucus viscosity D) Disrupts endometrial implantation 23. Which contraceptive method is safest for a 38-year-old woman who smokes one pack per day? A) Combined oral contraceptive pill B) Progestin-only implant C) Transdermal patch D) Vaginal ring 24. Depot medroxyprogesterone acetate (DMPA) use is associated with what significant long- term adverse effect? A) Insulin resistance B) Osteopenia due to hypoestrogenism C) Hepatotoxicity D) Hyperthyroidism 25. Tamoxifen reduces breast cancer risk by what mechanism? A) Inducing apoptosis in tumor cells B) Inhibiting aromatase activity C) Selective estrogen receptor modulation in breast tissue D) Increasing progesterone secretion 26. Which selective estrogen receptor modulator (SERM) is indicated for dyspareunia and vulvovaginal atrophy during menopause? A) Raloxifene B) Ospemifene C) Tamoxifen D) Clomiphene 27. What is the first-line treatment for symptomatic bacterial vaginosis in women? A) Fluconazole oral B) Acyclovir topical C) Metronidazole oral or vaginal D) Nitrofurantoin oral 28. Which method of contraception has the lowest typical-use failure rate? A) Male condoms B) Combined oral contraceptives C) Copper intrauterine device (IUD) D) Vaginal ring ' Skin (7 Questions) 29. Which topical formulation provides the highest degree of occlusion and is best suited for dry, scaly dermatologic conditions? A) Gel B) Ointment C) Lotion D) Foam 30. First-line therapy for mild to moderate acne vulgaris includes which agent? A) Isotretinoin oral B) Benzoyl peroxide C) Oral doxycycline D) Tretinoin oral 31. Azelaic acid is most commonly prescribed in the management of which dermatologic condition? A) Impetigo B) Psoriasis C) Rosacea D) Onychomycosis 32. Calcipotriene is primarily indicated in which of the following skin conditions? A) Contact dermatitis B) Psoriasis C) Acne vulgaris D) Tinea corporis 33. Permethrin 5% cream is the first-line treatment for which parasitic infection? A) Lice B) Hookworm C) Scabies D) Tinea versicolor 34. Which oral antifungal agent is the treatment of choice for onychomycosis due to dermatophytes? A) Fluconazole B) Terbinafine C) Ketoconazole D) Nystatin 35. Imiquimod is FDA-approved for the treatment of which of the following lesions? A) Eczema B) Actinic keratosis C) Seborrheic keratosis D) Psoriasis Immunizations (5 Questions) 36. Live attenuated vaccines are contraindicated in which population? A) Healthy adolescents B) Immunocompromised individuals C) Smokers D) Diabetics 37. Which vaccine should be avoided in individuals with a known severe allergy to eggs (traditional formulations)? A) Hepatitis B B) Influenza (standard) C) Tetanus-diphtheria D) Polio (IPV) 38. The recombinant zoster vaccine (Shingrix) is recommended for which group? A) Children 10 years B) Adults aged ≥50 years regardless of varicella history C) Pregnant women D) Teenagers with prior shingles history 39. The mechanism of mRNA-based vaccines involves: A) Injection of live attenuated virus B) Use of viral vectors to encode DNA C) Delivery of mRNA that is translated by host cells to produce antigens D) Direct injection of antibodies 40. A rare but serious adverse effect of the DTaP vaccine includes: A) Febrile seizures B) Anaphylaxis C) Encephalopathy D) Guillain-Barré Syndrome