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 B
Explanation
According to the CDC, people with severe, life-threatening allergies to any ingredient in a flu vaccine (other than egg proteins) should not get that vaccine. However, people with egg allergy can get a flu vaccine. The CDC also states that people who have had a severe allergic reaction to a dose of influenza vaccine should not get that flu vaccine again and might not be able to receive other influenza vaccines. Therefore, a nurse should report an egg allergy to the provider as a possible contraindication to receiving the vaccine.
Choice A is wrong because shellfish is not an ingredient in a flu vaccine and is not a contraindication to receiving the vaccine.
Choice C is wrong because milk is not an ingredient in a flu vaccine and is not a contraindication to receiving the vaccine.
Choice D is wrong because peanuts are not an ingredient in a flu vaccine and are not a contraindication to receiving the vaccine.
Correct Answer is A
Explanation
Epinephrine (adrenaline) is the first-line treatment for anaphylaxis, a severe and potentially life-threatening allergic reaction. Epinephrine works by reducing the body’s allergic response and improving the breathing and circulation of the client. Epinephrine should be given as soon as possible after the onset of anaphylaxis symptoms, using an auto-injector device if available.
Choice B is wrong because replacing the infusion with 0.9% sodium chloride (normal saline) is not enough to treat anaphylaxis. Normal saline can help maintain the blood pressure and hydration of the client, but it does not reverse the allergic reaction or improve the breathing of the client. Normal saline can be given after epinephrine, but not before or instead of it.
Choice C is wrong because giving diphenhydramine IM is not enough to treat anaphylaxis. Diphenhydramine is an antihistamine that can help relieve some of the symptoms of anaphylaxis, such as itching and hives, but it works too slowly and does not address the more serious effects of anaphylaxis on the breathing and circulation of the client. Diphenhydramine can be given after epinephrine, but not before or instead of it.
Choice D is wrong because elevating the client's legs and feet is not enough to treat anaphylaxis. Elevating the legs and feet can help increase the blood flow to the vital organs, but it does not reverse the allergic reaction or improve the breathing of the client. Elevating the legs and feet can be done after epinephrine, but not before or instead of it.
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