The nurse is preparing an Injection of 10 units of regular Insulin and 5 units of NPH insulin from two vials. The nurse should:
inject air into the regular insulin, then into the NPH.
inject air into both vials and withdraw the regular insulin first.
Inject air into and withdraw the NPH immediately.
withdraw the regular insulin first.
The Correct Answer is B
Choice A rationale: Injecting air into the regular insulin and then into the NPH is not the correct sequence.
Choice B rationale: Injecting air into both vials and withdrawing the regular insulin first is the correct sequence when drawing up a combination of short-acting and intermediate- acting insulins.
Choice C rationale: Injecting air into and withdrawing the NPH immediately is not the correct sequence.
Choice D rationale: Withdrawing the regular insulin first is not the correct sequence when preparing a mixed insulin injection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale: The normal stimulus to breathe is an increased carbon dioxide level, which stimulates the respiratory center in the brain.
Choice B rationale: Increased oxygen levels do not serve as the primary stimulus for breathing. The respiratory center is primarily responsive to carbon dioxide levels.
Choice C rationale: Increased carbon dioxide level is the correct stimulus for normal breathing.
Choice D rationale: Decreased oxygen level is not the primary stimulus for normal breathing.
Correct Answer is D
Explanation
Choice A rationale: A potassium level of 4.2 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice B rationale: A phosphate level of 3.0 mg/dL is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice C rationale: A magnesium level of 1.8 mEq/L is within the normal range and would not validate Trousseau's and Chvostek's signs.
Choice D rationale: A calcium level of 6.9 mg/dL is below the normal range and could validate Trousseau's and Chvostek's signs.
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