A Nurse is preparing to start a heparin drip on a client with acute coronary syndrome. Ordered: Give Heparin 1000 units per hour, standard dilution of 25,000 units in 250 mL of normal saline. What is the correct drip setting for the pump in mL/hr?
The Correct Answer is ["10"]
- Determine the heparin concentration:
- You have 25,000 units of heparin in 250 mL of normal saline.
- Concentration = 25,000 units / 250 mL = 100 units/mL
- Calculate the mL/hr rate:
- The order is for 1,000 units/hour.
- Drip rate (mL/hr) = 1,000 units/hour / 100 units/mL = 10 mL/hour
Answer = 10mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While potassium is typically diluted in IV fluids, the concentration and infusion rate must be clarified before administration. A standard dilution is 10 mEq in 100 mL or 40 mEq in 1L, but this must be verified.
B. Calling the physician for clarification is the safest step. IV potassium should never be given undiluted or as an IV push due to the risk of fatal cardiac arrhythmias.
C. IV push potassium is never appropriate as it can cause cardiac arrest.
D. Administering the undiluted 20 mEq/mL solution is dangerous and requires proper dilution before administration.
Correct Answer is C
Explanation
A. Holding all medications is not necessary; only certain medications that affect heart rate or blood pressure are held.
B. Keflex (Cephalexin) is an antibiotic and does not affect stress test results, so it should not be held.
C. Tenormin (Atenolol) is a beta-blocker that reduces heart rate and can interfere with the stress test by blunting the expected heart rate response. Beta-blockers are typically held before an exercise stress test.
D. Heparin is an anticoagulant and does not impact the stress test results.
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