Heparin Infusion Review.
A nurse is reviewing the laboratory results of a client who is receiving heparin by continuous IV infusion.
Which of the following results indicates the nurse should decrease the infusion rate?
Erythrocyte sedimentation rate 18 mm/hr.
aPTT 90 seconds.
INR.2.
Platelets 350,000/mm.
The Correct Answer is B
Heparin is an anticoagulant medication that is used to decrease the clotting ability of the blood and help prevent harmful clots from forming in blood vessels.
The activated partial thromboplastin time (aPTT) is a laboratory test commonly used to monitor unfractionated heparin therapy.
An aPTT value of 90 seconds is above the therapeutic range and indicates that the heparin infusion rate should be decreased.
Choice A is wrong because Erythrocyte sedimentation rate 18 mm/hr, is not the correct answer because it is not used to monitor heparin therapy.
Choice C is wrong because INR.2, is not the correct answer because it falls within the normal range for INR values and is not used to monitor heparin therapy.
Choice D is wrong because Platelets 350,000/mm, is not the correct answer because it falls within the normal range for platelet counts and is not used to monitor heparin therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Step 1: Convert weight from lb to kg.
88 lb ÷ 2.2 = 40 kg
Step 2: Calculate total daily dose in mg.
150 mg/kg × 40 kg = 6000 mg
Step 3: Calculate dose per administration (every 6 hr).
6000 mg ÷ 4 = 1500 mg
Step 4: Calculate number of tablets per dose.
1500 mg ÷ 500 mg/tab = 3 tablets
Answer:
3 tablets per dose.
Correct Answer is C
Explanation
The first intervention for a client with diabetic ketoacidosis and a blood glucose level of 800 mg/dL should be to initiate fluid replacement therapy with 0.9% sodium chloride at a rate of 15 mL/kg/hr.
This will help to replace fluids lost through excessive urination and to dilute the excess sugar in the blood.
Choice A is wrong because subcutaneous insulin injections are not the first intervention for diabetic ketoacidosis.
Insulin therapy is generally given intravenously.
Choice B is wrong because bicarbonate by IV infusion is not the first intervention for diabetic ketoacidosis.
Choice D is wrong because potassium chloride at a rate of 10 mEq/hr is not the first intervention for diabetic ketoacidosis.
Electrolyte replacement may be necessary to replace minerals such as sodium, potassium, and chloride, but this is not the first intervention 2.
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