A nurse is assessing a client with suspected deep vein thrombosis (DVT). Which diagnostic test should the nurse anticipate to confirm the presence of DVT?
Arterial blood gas (ABG) analysis.
D-dimer blood test.
Electrocardiogram (ECG).
Chest X-ray.
The Correct Answer is B
A) This choice is incorrect because arterial blood gas (ABG) analysis assesses oxygen and carbon dioxide levels in the blood, primarily used for respiratory and acid-base evaluations, not for confirming DVT.
B) This choice is correct. The D-dimer blood test is a screening test used to detect the presence of blood clot breakdown products in the blood. Elevated levels of D-dimer may suggest the presence of a blood clot, prompting further diagnostic testing for DVT.
C) This choice is incorrect because an electrocardiogram (ECG) primarily assesses the electrical activity of the heart and is not specific to confirming DVT. It may be useful to assess cardiac function in individuals with suspected pulmonary embolism.
D) This choice is incorrect because a chest X-ray is not used to confirm DVT. It is helpful in assessing the lungs and heart, particularly for detecting potential complications of DVT like a pulmonary embolism, but it does not directly diagnose DVT.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) This choice is correct. Prolonged sitting or standing in one position can lead to reduced blood flow and stasis, increasing the risk of DVT. Encouraging regular movement and changing positions can help prevent clot formation.
B) This choice is incorrect because massaging the legs may not be suitable for everyone and is not a primary preventive measure for DVT. While it can aid in improving blood circulation, it should be done cautiously and not as a standalone preventive action.
C) This choice is incorrect because increasing the intake of vitamin K-rich foods is not a preventive measure for DVT. Vitamin K is involved in the clotting process, but it does not directly impact the risk of DVT.
D) This choice is incorrect because taking over-the-counter pain medications for leg discomfort does not prevent DVT. While pain management may be necessary for symptomatic relief, it does not address the underlying risk factors for DVT.
Correct Answer is D
Explanation
A) This choice is incorrect because while the D-dimer blood test is used to rule out DVT in low-risk individuals, the Wells score assessment is typically performed first to assess the client's pretest probability of DVT.
B) This choice is incorrect because magnetic resonance imaging (MRI) is not typically used as an initial diagnostic test for DVT. It may be employed in specific cases but is not the first-line test.
C) This choice is incorrect because a complete blood count (CBC) is a general blood test that does not directly assess the risk of DVT. It may provide information about overall health but is not specific to DVT assessment.
D) This choice is correct. The Wells score assessment is a validated tool used to estimate the likelihood of DVT based on clinical criteria and risk factors. It is commonly used as the first step in the diagnostic workup to determine if further testing, such as venous Doppler ultrasound or D-dimer blood test, is necessary.
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