A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

It raises cardiac output and MAP.

It causes vasoconstriction and increased MAP.

There is no direct correlation to MAP.

Lower blood volume lowers MAP.

Answer and Explanation

The Correct Answer is D

A.   Severe blood loss actually decreases blood volume, which leads to decreased cardiac output and ultimately lower MAP.
B.   While it's true that the body initially responds to blood loss by vasoconstricting to maintain blood pressure, this compensatory mechanism can only last for so long. As blood loss continues, MAP will decrease.
C.   There is no direct correlation to MAP. MAP is directly influenced by cardiac output and systemic vascular resistance (SVR). Blood volume is a major determinant of both.
D.   A decrease in blood volume leads to decreased preload, which reduces cardiac output. This, in turn, lowers MAP.

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Correct Answer is B

Explanation

A. If there is no change in muscle strength after the Tensilon test, it indicates a negative result for myasthenia gravis.
B. Muscle contractions become progressively stronger is a positive result for myasthenia gravis. Tensilon temporarily improves muscle strength in patients with this condition.
C. Electrical charge in a muscle increases in intensity is not a relevant parameter for the Tensilon test.
D. A pill-rolling tremor appears is a symptom of Parkinson's disease, not myasthenia gravis.

Correct Answer is ["5.3"]

Explanation

1 pound = 0.453592 kilograms

28 pounds = 28 * 0.453592 = 12.7 kilograms

Dose = weight in kg * prescribed dose Dose = 12.7 kg * 10 mg/kg = 127 mg

The medication is availableas 120 mg/5 mL. To find the volume for 127 mg:

Volume = (desired dose / concentration) * volume Volume = (127 mg / 120 mg) * 5 mL

Volume ≈ 5.29 mL

Therefore, the nurse should administer approximately 5.3 mL of acetaminophen.

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A nurse who is mentoring a graduate nurse explains the correlation between severe blood loss and the effect on the client's mean arterial pressure (MAI The graduate nurse demonstrates correct understanding when he states which of the following:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has a suspected diagnosis of myasthenia gravis. The provider prescribes a Tensilon test. Which of the following findings indicates a positive test?

Correct Answer is B

Explanation

A nurse is preparing to administer acetaminophen 10 mg/kg/dose to a child who weighs 28 lb. The amount available is acetaminophen 120 mg/5 mL. How many ml should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["5.3"]

Explanation

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