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 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.
Correct Answer is D
Explanation
A) Incorrect. Avoiding all physical activity is not recommended. Clients should engage in appropriate physical activity, and the level of activity may be adjusted based on their condition.
B) Incorrect. A diet high in cholesterol is not a preventive measure for blood clots; in fact, it can contribute to cardiovascular risk factors.
C) Incorrect. While excessive caffeine and alcohol intake should be avoided, eliminating them completely is not a specific preventive measure for pulmonary embolism.
D) Correct. Following the healthcare provider's recommendations for anticoagulant therapy is crucial in preventing recurrent pulmonary embolism, especially in individuals with a history of the condition.
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