A client with suspected pulmonary embolism is undergoing a ventilation-perfusion (V/Q) scan. What is the purpose of this imaging test?
To visualize the heart's electrical activity
To assess lung function and oxygenation
To measure blood clotting time
To evaluate kidney function
The Correct Answer is B
A) Incorrect. Visualizing the heart's electrical activity is typically done with an electrocardiogram (ECG), not a V/Q scan.
B) Correct. A ventilation-perfusion (V/Q) scan is used to assess lung function and oxygenation and to detect areas of the lung where blood flow and air ventilation do not match, which can indicate a pulmonary embolism.
C) Incorrect. Measuring blood clotting time is typically done using coagulation tests such as prothrombin time (PT) or activated partial thromboplastin time (aPTT).
D) Incorrect. Evaluating kidney function is not the primary purpose of a V/Q scan.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Incorrect. High-intensity exercise may not necessarily reduce the risk and could potentially increase the risk if it leads to prolonged immobility afterward.
B) Correct. Maintaining a healthy weight, regular physical activity, and avoiding smoking are known lifestyle factors that can reduce the risk of pulmonary embolism.
C) Incorrect. Lifestyle changes, as mentioned, can play a role in prevention.
D) Incorrect. While stress reduction is beneficial for overall health, it is not specifically linked to the prevention of pulmonary embolism.
Correct Answer is A
Explanation
A) Correct. Chest pain that worsens with deep breaths (pleuritic chest pain) is a common and concerning symptom of pulmonary embolism.
B) Incorrect. Persistent cough with yellow-green mucus production is not a typical symptom of pulmonary embolism.
C) Incorrect. Lightheadedness and dizziness can be associated with pulmonary embolism but are less specific symptoms.
D) Incorrect. Swelling and redness in the lower legs are more indicative of deep vein thrombosis (DVT), which can sometimes lead to pulmonary embolism but are not direct symptoms of pulmonary embolism.
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