A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory tests should the nurse review prior to adjusting the client's heparin?
aPTT
PT
INR
WBC count
The Correct Answer is A
- A is correct because aPTT (activated partial thromboplastin time) measures the effectiveness of heparin therapy and guides dosage adjustments.
- B is incorrect because PT (prothrombin time) measures the effectiveness of warfarin therapy, not heparin.
- C is incorrect because INR (international normalized ratio) is a standardized version of PT that also monitors warfarin therapy, not heparin.
- D is incorrect because WBC count (white blood cell count) measures the body's immune response and has no relation to heparin therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
"I will not allow anyone to smoke near my baby."
- A. Correct. Avoiding exposure to tobacco smoke is one of the measures to prevent SIDS, as it can affect the respiratory function and arousal of the newborn.
- B. Incorrect. Placing bumper pads in the baby's crib is not recommended, as they can pose a suffocation or strangulation hazard for the newborn.
- C. Incorrect. Placing the baby's head on a pillow for sleeping is not advised, as it can increase the risk of suffocation or rebreathing of carbon dioxide for the newborn.
- D. Incorrect. Placing the baby in a side-lying position for sleeping is not suggested, as it can increase the likelihood of rolling over to a prone position, which is associated with a higher incidence of SIDS.
Correct Answer is C
Explanation
- A. Oliguria. This is incorrect because oliguria, or decreased urine output, is a sign of fluid volume deficit, not fluid volume overload.
- B. Bradycardia. This is incorrect because bradycardia, or slow heart rate, is not a typical sign of fluid volume overload, unless the client has a cardiac condition that affects the heart's response to fluid overload.
- C. Dyspnea. This is correct because dyspnea, or difficulty breathing, is a common sign of fluid volume overload, as excess fluid accumulates in the lungs and impairs gas exchange.
- D. Poor skin turgor. This is incorrect because poor skin turgor, or decreased elasticity of the skin, is a sign of dehydration, not fluid volume overload.

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