APEA 3P Predictor Exam 2026/2027 Comprehensive Knowledge Assessment and Review Guide: Advanced Test Bank, Detailed Practice Questions, Final Exam Preparation, and Complete Study Companion

A patient taking digoxin begins using an over-the-counter medication for indigestion. At follow-up, the provider is concerned that the new medication may reduce digoxin levels. Which medication is most likely responsible? A. Acetaminophen B. Antacids C. Metformin D. Fluoxetine Correct Answer: B. Antacids Rationale: Some antacids can reduce the absorption of digoxin in the gastrointestinal tract, potentially lowering serum digoxin concentrations and reducing its therapeutic effectiveness. When patients taking digoxin use antacids, appropriate administration timing and monitoring may be necessary. Acetaminophen, metformin, and fluoxetine are not the expected medications responsible for decreased digoxin absorption in this scenario. Question 2 A patient with a urinary tract infection is prescribed phenazopyridine for urinary discomfort. Which serious adverse effect should the clinician monitor for, particularly with prolonged or inappropriate use? A. Hyperkalemia B. Hemolytic anemia Ototoxicity Tendon rupture Correct Answer: B. Hemolytic anemia Rationale: Phenazopyridine is used for short-term relief of urinary pain, burning, and discomfort. A serious adverse effect is hemolytic anemia, particularly in patients with certain risk factors or when the medication is used longer than recommended. Hyperkalemia is more commonly associated with medications such as ACE inhibitors and potassium-sparing diuretics. Ototoxicity is associated with medications such as aminoglycosides, while tendon rupture is a recognized adverse effect of fluoroquinolone antibiotics. Question 3 A woman with irregular menses, acne, and unwanted facial hair is diagnosed with polycystic ovary syndrome (PCOS). Which metabolic abnormality is commonly associated with this condition? A. Decreased insulin levels B. Increased insulin levels C. Low androgen levels D. Low prolactin levels Correct Answer: B. Increased insulin levels Rationale: Polycystic ovary syndrome is commonly associated with insulin resistance and compensatory hyperinsulinemia. Increased insulin levels can contribute to increased androgen production, which may result in hirsutism, acne, and menstrual irregularities. PCOS is also associated with an increased risk of impaired glucos e l tolerance and type 2 diabetes. Low androgen levels would not explain the typica hyperandrogenic features of PCOS, and low prolactin is not a defining characteristic. Question 4 A pregnant patient develops hypertension requiring pharmacologic treatment. Which medication combination includes commonly accepted antihypertensive options during pregnancy? A. Lisinopril, losartan, spironolactone, and atenolol B. Methyldopa, labetalol, nifedipine, and hydralazine Warfarin, digoxin, furosemide, and amiodarone Hydrochlorothiazide, allopurinol, colchicine, and propranolol Correct Answer: B. Methyldopa, labetalol, nifedipine, and hydralazine Rationale: Labetalol, nifedipine, hydralazine, and methyldopa are among the medications that may be used for hypertension during pregnancy, depending on the clinical situation. ACE inhibitors such as lisinopril and angiotensin receptor blockers such as losartan are generally avoided because of fetal risks. The medications listed in the other choices are not appropriate combinations for routine treatment of hypertension during pregnancy. Medication selection should be based on the severity of hypertension, gestational age, maternal conditions, and current clinical guidelines. Question 5 A woman at 31 weeks' gestation presents with sudden, bright red vaginal bleeding. She denies pain and reports no contractions. Which diagnosis is most consistent with this presentation? A. Placenta previa B. Placental abruption C. Ectopic pregnancy D. Preeclampsia Correct Answer: A. Placenta previa Rationale: Placenta previa classically presents after 20 weeks' gestation with painless, bright red vaginal bleeding. It occurs when the placenta is located near or over the internal cervical os. Placental abruption more commonly causes painful vaginal bleeding accompanied by uterine tenderness or a firm, tense uterus. Ectopic pregnancy generally occurs much earlier in pregnancy. Preeclampsia is characterized primarily by hypertension with proteinuria and/or other signs of maternal organ involvement rather than isolated painless vaginal bleeding. Question 6 A patient reports morning stiffness and has tender, warm, swollen joints involving both hands. Which condition is most consistent with these findings? A. Osteoarthritis B. Rheumatoid arthritis Gout Testicular torsion Correct Answer: B. Rheumatoid arthritis Rationale: Rheumatoid arthritis is a chronic autoimmune inflammatory disorder that commonly affects the small joints of the hands in a symmetric pattern. Patients may experience prolonged morning stiffness, warmth, tenderness, and swelling. Osteoarthritis is primarily degenerative and typically causes pain that worsens with activity, although inflammatory features may occur. Gout usually causes sudden, severe pain and inflammation involving one or a few joints, often beginning in the first metatarsophalangeal joint. Testicular torsion is unrelated to joint disease. Question 7 A patient taking medication develops new tinnitus and hearing difficulty. Which medication class is commonly associated with ototoxicity? A. Aminoglycosides B. Selective serotonin reuptake inhibitors C. Proton pump inhibitors D. Alpha-1 blockers Correct Answer: A. Aminoglycosides Rationale: Aminoglycoside antibiotics are well-known for their potential ototoxicity and can cause hearing loss, tinnitus, and vestibular dysfunction. Other medications associated with ototoxicity include certain loop diuretics, high-dose salicylates, and some chemotherapy agents. SSRIs, proton pump inhibitors, and alpha-1 blockers are not classically associated with significant ototoxicity. Patients receiving potentially ototoxic medications should be monitored for auditory or vestibular symptoms. Question 8 A child is diagnosed with enterobiasis (pinworm infection). The provider prescribes treatment and instructs the family that repeat therapy is needed. When should the second dose generally be given? A. The next day B. In 3 days C. In 2 weeks D. In 6 months Correct Answer: C. In 2 weeks Rationale: Enterobiasis, commonly known as pinworm infection, is typically treated with an initial dose followed by a repeat dose approximately 2 weeks later. The repeat treatment helps eliminate newly emerged worms because the medications may not reliably kill the eggs. Good hygiene practices, including handwashing, cleaning under the fingernails, laundering bedding and clothing, and appropriate treatment of household members when indicated, can help reduce reinfection. Question 9 A clinician reviews a complete blood count and focuses on the mean corpuscular volume (MCV). What does MCV primarily help evaluate? A. Platelet clotting ability B. Average red blood cell size C. White blood cell maturity D. Serum iron storage only Correct Answer: B. Average red blood cell size Rationale: Mean corpuscular volume (MCV) measures the average size of red blood cells and is an important tool for classifying anemia. A low MCV indicates microcytosis, which may occur with iron deficiency or thalassemia. A high MCV indicates macrocytosis, which may occur with vitamin B12 or folate deficiency and other conditions. MCV does not measure platelet function, white blood cell maturity, or iron stores directly. Ferritin is more useful for assessing iron stores. Question 10 An Rh-negative pregnant patient asks when Rho(D) immune globulin (RhoGAM) is routinely given during pregnancy. Which timing is correct? A. At 12 weeks only B. At 20 weeks only C. At approximately 28 weeks' gestation D. Only after the infant is 6 months old Correct Answer: C. At approximately 28 weeks' gestation Rationale: Rho(D) immune globulin is routinely administered to eligible Rh-negative, unsensitized pregnant patients at approximately 28 weeks' gestation to prevent Rh alloimmunization. It is also administered after delivery when the newborn is Rhpositive and after certain potentially sensitizing events, such as significant bleeding, pregnancy loss, ectopic pregnancy, or invasive procedures. Its purpose is to prevent maternal antibody formation that could cause hemolytic disease in a future Rhpositive fetus or newborn.