Renal System MCAT Practice Questions
12 board-style MCAT questions in Biological & Biochemical Foundations (B/B). Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- MCAT · medium1. A 68-year-old man with stage 3b chronic kidney disease (eGFR 28 mL/min/1.73m²) presents for routine follow-up. Laboratory studies show serum potassium 6.1 mEq/L (normal 3.5-5.0)…
- MCAT · medium2. A 68-year-old man with a history of diabetes mellitus presents for evaluation of polyuria and polydipsia. During clinical assessment, inulin is infused intravenously and urine i…
- MCAT · medium3. A 6-year-old boy presents with sudden onset of periorbital edema, abdominal distension, and foamy urine. His mother reports he had a upper respiratory infection 2 weeks ago. Phy…
- MCAT · medium4. A 35-year-old patient with a history of recurrent kidney stones undergoes genetic testing and is found to have a mutation in the SLC7A9 gene, which encodes a basolateral amino a…
- MCAT · medium5. A 58-year-old man with hypertension begins a new antihypertensive medication. After 2 weeks of therapy, he develops muscle cramps in his legs and episodes of palpitations. Serum…
- MCAT · medium6. A 68-year-old male with a history of lithium use for bipolar disorder presents with polyuria and polydipsia for 3 months. Physical examination reveals dry mucous membranes and m…
- MCAT · medium7. A 68-year-old man with a 10-year history of type 2 diabetes mellitus presents with progressive dyspnea and lower extremity edema. Laboratory studies show serum creatinine 4.2 mg…
- MCAT · medium8. A 6-year-old boy presents to the pediatric clinic with periorbital edema and his mother reports his urine appears "foamy." Vital signs show BP 110/68 mmHg (normal for age). Labo…
- MCAT · medium9. A 45-year-old man with a 15-year history of type 2 diabetes mellitus presents for routine urinalysis. Laboratory findings show a serum creatinine of 1.8 mg/dL (previously 1.0 mg…
- MCAT · medium10. A 58-year-old man with a 10-year history of hypertension and type 2 diabetes mellitus is started on lisinopril for blood pressure control and renal protection. After 3 months of…
- MCAT · medium11. A 35-year-old man with a history of type 2 diabetes mellitus presents with persistent proteinuria on routine urinalysis. His serum creatinine is 1.2 mg/dL and his glomerular fil…
- MCAT · medium12. A patient presents with hyperkalemia and metabolic acidosis. Laboratory tests reveal reduced GFR and elevated serum creatinine. The kidneys show decreased ammonia excretion and…