LPN: Pharmacological Therapies Flashcards
7 cards from real LPN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 LPN: Pharmacological Therapies flashcards as text
A patient is prescribed metformin 500 mg twice daily. Which condition is an absolute contraindication for this medication?
Answer: Renal impairment with eGFR < 30 mL/min
Metformin is contraindicated in severe renal impairment (eGFR < 30 mL/min) due to the risk of lactic acidosis.
An LPN is administering heparin subcutaneously. Which action is correct technique?
Answer: Inject into the abdomen 2 inches from the umbilicus
Heparin should be injected into the abdomen at least 2 inches from the umbilicus to reduce bruising and ensure proper absorption.
A patient taking warfarin reports eating large amounts of leafy green vegetables daily. What is the primary concern?
Answer: Decreased anticoagulant effect due to high vitamin K intake
Vitamin K found in leafy greens antagonizes warfarin's anticoagulant effect, potentially reducing its therapeutic efficacy.
Which medication requires the nurse to monitor serum potassium levels most closely?
Answer: Furosemide
Furosemide is a loop diuretic that causes potassium wasting, placing patients at risk for hypokalemia.
A patient is prescribed morphine 4 mg IV every 4 hours PRN for pain. The patient's respiratory rate is 10 breaths/min. What should the LPN do first?
Answer: Notify the charge nurse or physician immediately
A respiratory rate of 10 breaths/min indicates respiratory depression, a serious opioid side effect requiring immediate notification.
Which statement by a patient indicates understanding of taking oral iron supplements correctly?
Answer: 'I should take my iron pill with orange juice on an empty stomach.'
Vitamin C in orange juice enhances iron absorption, and taking iron on an empty stomach maximizes uptake.
A patient receiving IV vancomycin develops flushing, erythema, and hypotension during infusion. What is the most likely cause?
Answer: Red Man Syndrome from rapid infusion
Red Man Syndrome is a non-immune infusion reaction caused by too-rapid vancomycin administration, causing histamine release.