A nurse is preparing to administer 4,000 units of heparin subcutaneously to a client who has deep-vein thrombosis.
Available is heparin 10,000 units/mL.
How many mL of heparin should the nurse administer? (Round the answer to the nearest) tenth.
Use a leading zero if it applies.
Do not use a trailing zero.) mL.
The Correct Answer is ["0.4"]
To calculate the amount of heparin to administer, use the formula:
mL of heparin=units available units ordered×1mL available
Substituting the values given in the question, we get:
mL of heparin=100004000×11=0.4
Therefore, the nurse should administer 0.4 mL of heparin.
Normal ranges for heparin therapy vary depending on the condition being treated and the laboratory method used to measure APTT.
A general range is 60 to 80 seconds or 1.5 to 2.5 times the control value.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Urticaria, also known as hives, is a common sign of an allergic reaction to penicillin. An allergic reaction is an abnormal response of the immune system to the drug. Other signs and symptoms of penicillin allergy may include skin rash, itching, fever, swelling, shortness of breath, wheezing, runny nose, itchy eyes, and anaphylaxis. Anaphylaxis is a rare but life-threatening condition that affects multiple body systems and requires immediate emergency treatment.
Choice A is wrong because pallor is not a typical sign of an allergic reaction to penicillin.
Pallor means pale skin and may be caused by other conditions such as anemia or shock.
Choice B is wrong because bradycardia is not a typical sign of an allergic reaction to penicillin.
Bradycardia means slow heart rate and may be caused by other conditions such as heart block or medication side effects.
Choice D is wrong because dyspepsia is not a typical sign of an allergic reaction to penicillin.
Dyspepsia means indigestion and may be caused by other conditions such as gastritis or peptic ulcer.
Correct Answer is D
Explanation
Distended neck veins are a sign of increased central venous pressure, which can result from fluid volume excess. Fluid volume excess can also cause edema, crackles in the lungs, and increased blood pressure.
Choice A is wrong because decreased bowel sounds are not related to fluid volume excess.
Decreased bowel sounds can indicate ileus, obstruction, or peritonitis. Choice B is wrong because bilateral muscle weakness is not a sign of fluid volume excess.
Bilateral muscle weakness can be caused by electrolyte imbalances, neuromuscular disorders, or stroke.
Choice C is wrong because thready pulse is a sign of fluid volume deficit, not excess.
Thready pulse indicates poor perfusion and low cardiac output, which can result from dehydration, hemorrhage, or shock.
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