The statement made by a patient that would delay a scheduled CT scan with contrast would be:

“I have just been started on metformin."

"I am allergic to penicillin.”

"I have terrible claustrophobia."

"I have an implanted pacemaker."

Answer and Explanation

The Correct Answer is A

A. “I have just been started on metformin." Metformin use requires caution with contrast as it increases the risk of lactic acidosis, especially if renal function is impaired.

B. "I am allergic to penicillin": This allergy is unrelated to contrast agents.

C. "I have terrible claustrophobia": Claustrophobia can be managed with anxiolytics and would not necessarily delay the scan.

D. "I have an implanted pacemaker": Pacemakers are not a contraindication for CT scans.

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Correct Answer is ["Bone marrow aspiration"]

Explanation

Bone marrow aspiration involves using a needle to collect liquid bone marrow for diagnostic testing.

A. “The first drop has serous fluid that can dilute the specimen.” B. “The first drop is usually contaminated.” C. “This eliminates microorganisms from the sample.” D. “The first drop is usually too small.”

Correct Answer is A

Explanation

A. "The first drop has serous fluid that can dilute the specimen." The first drop of blood may be mixed with serous fluid or tissue fluid, which can lead to inaccurate glucose readings.

B. "The first drop is usually contaminated.": This is inaccurate; contamination is not the primary concern.

C. "This eliminates microorganisms from the sample.": Blood glucose meters are not designed to detect or be affected by microorganisms.

D. "The first drop is usually too small.": The amount of blood is not the issue; it is the potential for dilution.

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The statement made by a patient that would delay a scheduled CT scan with contrast would be:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The technique of _______________ is used to obtain a sample of bone marrow for diagnostic testing.

Correct Answer is ["Bone marrow aspiration"]

Explanation

A patient asks why the blood glucose meter directions state to wipe away the first drop of blood. The most informative response by the nurse would be:

Correct Answer is A

Explanation

The correct technique for obtaining a stool specimen for ova and parasites is to use a wooden stick and:

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