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
A. Droplet: Correct. Pneumonia is transmitted by respiratory droplets that are generated by coughing, sneezing, or talking. The nurse should wear a surgical mask and eye protection when caring for the client and maintain a distance of at least 3 feet from the client.
B. Airborne: Incorrect. Airborne precautions are used for diseases that are transmitted by small particles that remain suspended in the air for long periods of time, such as tuberculosis, measles, or chickenpox. The nurse should wear a respirator and place the client in a negative-pressure room.
C. Contact: Incorrect. Contact precautions are used for diseases that are transmitted by direct or indirect contact with the client or the client's environment, such as Clostridium difficile, scabies, or MRSA. The nurse should wear gloves and a gown and use dedicated equipment for the client.
D. Protective environment: Incorrect. Protective environment precautions are used for clients who are immunocompromised and at risk of infection from others, such as clients who have had a stem cell transplant or are receiving chemotherapy. The nurse should wear a mask, gloves, and a gown and place the client in a positive-pressure room with HEPA filtration.
Correct Answer is A
Explanation
A. Pink, frothy sputum is a characteristic finding of pulmonary edema, which is caused by fluid accumulation in the alveoli and interstitial spaces of the lungs. This impairs gas exchange and leads to hypoxia and respiratory distress.
B. Bradycardia is not expected in pulmonary edema. The client is more likely to have tachycardia due to increased sympathetic stimulation and decreased cardiac output.
C. Flushed, dry skin is not expected in pulmonary edema. The client is more likely to have pale, cool, and clammy skin due to peripheral vasoconstriction and decreased perfusion.
D. Wheezing is not a specific finding of pulmonary edema. It may indicate bronchospasm or asthma, which are different conditions that affect the airways rather than the alveoli.
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