. Med-Surg A patient with heart failure is prescribed furosemide. What should the nurse monitor most closely? A. Blood glucose B. Potassium levels C. Calcium levels D. Hemoglobin Answer: B. Potassium levels Explanation: Furosemide is a loop diureti

. Med-Surg A patient with heart failure is prescribed furosemide. What should the nurse monitor most closely? A. Blood glucose B. Potassium levels C. Calcium levels D. Hemoglobin Answer: B. Potassium levels Explanation: Furosemide is a loop diuretic that causes potassium loss, which can lead to dangerous arrhythmias. 2. Pharmacology Which instruction is most important for a patient taking warfarin? A. Avoid dairy products B. Increase salt intake C. Maintain consistent vitamin K intake D. Take medication with grapefruit juice Answer: C. Maintain consistent vitamin K intake Explanation: Vitamin K affects how warfarin works. Sudden changes can cause bleeding or clotting problems. 3. Maternity A woman in labor says she feels pressure and the urge to push. What is the nurse’s first action? A. Call the doctor B. Check cervical dilation C. Give pain medication D. Prepare for surgery Answer: B. Check cervical dilation Explanation: The nurse must confirm full dilation before allowing pushing to prevent injury. 4. Pediatrics Which sign indicates dehydration in an infant? A. Wet diapers every hour B. Sunken fontanelle C. Drooling D. Crying tears Answer: B. Sunken fontanelle Explanation: A sunken soft spot is a key sign of dehydration in infants. 5. Mental Health A patient with depression says, “I don’t see the point of living.” What is the best response? A. “You’ll feel better soon.” B. “Why do you feel that way?” C. “Are you thinking about harming yourself?” D. “Ignore those thoughts.” Answer: C. Are you thinking about harming yourself? Explanation: Always assess for suicide risk directly. 6. Fundamentals What is the priority when caring for any patient? A. Comfort B. Safety C. Hygiene D. Nutrition Answer: B. Safety Explanation: In nursing, safety always comes first.