Which diagnostic test will be most useful to the nurse in determining whether a client admitted with acute shortness of breath has heart failure?
Serum troponin
Arterial blood gasses
12-lead electrocardiogram
B-type natriuretic peptide
The Correct Answer is D
B-type natriuretic peptide (BNP) is a diagnostic blood test that can be most useful to the nurse in determining whether a client admitted with acute shortness of breath has heart failure.
BNP is a hormone produced by the heart in response to increased pressure and volume in the heart, especially in cases of heart failure. When the heart is under stress, such as in heart failure, it releases BNP into the bloodstream. Elevated levels of BNP are strongly indicative of heart failure, and the test is particularly helpful in differentiating heart failure from other conditions that may present with similar symptoms, such as pulmonary disorders.
When a patient presents with acute shortness of breath, the BNP test can provide valuable information to help guide the diagnosis and treatment. If the BNP level is elevated, it suggests that heart failure is likely the cause of the symptoms, and appropriate interventions can be initiated promptly.
While other diagnostic tests like serum troponin (A) are important for assessing heart damage in conditions like myocardial infarction (heart attack), they may not be as specific for heart failure.
Arterial blood gases (B) are helpful in evaluating gas exchange and acid-base balance, especially in patients with respiratory distress, but they are not specific for diagnosing heart failure.
A 12-lead electrocardiogram (ECG) (C) can provide valuable information about the heart's electrical activity and any signs of acute myocardial infarction or other cardiac abnormalities, but it is not the primary test for diagnosing heart failure. An ECG can support the diagnosis if specific changes suggestive of heart failure are present, but the BNP test provides more direct evidence for heart failure diagnosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
In a client with chronic kidney disease (CKD), metabolic acidosis is a common acid-base disorder due to impaired excretion of acid and decreased bicarbonate reabsorption in the kidneys. The arterial blood gas values associated with metabolic acidosis in CKD are a low pH (acidemia), low bicarbonate (HCO3-), and normal or low partial pressure of carbon dioxide (PaCO2). Option A fits this pattern, with a pH of 7.25 (acidic), HCO3- of 19 mEq/L (low), and a PaCO2 of 30 mm Hg (within the normal to low range).
Option B shows a pH of 7.30 (acidic) but with a higher bicarbonate level of 26 mEq/L, which is not consistent with metabolic acidosis. The elevated bicarbonate level suggests metabolic alkalosis, which is not expected in a client with CKD.
Option C has a pH of 7.50 (alkaline) with an elevated bicarbonate level of 20 mEq/L and a low PaCO2 of 32 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.
Option D has a pH of 7.55 (alkaline) with an elevated bicarbonate level of 30 mEq/L and a low PaCO2 of 31 mm Hg. This set of values is indicative of metabolic alkalosis, which is not expected in a client with CKD.
Correct Answer is ["C","E"]
Explanation
Based on the client's condition, the nurse should monitor the following:
C. Electrocardiogram (ECG) Rhythm: The client is experiencing chest pain with ST elevation, which indicates a possible myocardial infarction (MI). Continuous monitoring of the ECG rhythm is essential to identify any changes or dysrhythmias that may occur during the course of the client's care.
E. Vital signs: The client's tachycardia with ST elevation suggests cardiac involvement. Monitoring vital signs, including heart rate, blood pressure, respiratory rate, and oxygen saturation, is crucial to assess the client's hemodynamic status and detect any signs of deterioration or improvement.
The other options (A. WBC Count, B. Platelet Count, and D. Serum glucose level) are not directly related to the client's acute chest pain and the possible MI. While these tests may be ordered for other reasons or as part of the overall assessment, they are not the immediate priorities in this situation. Monitoring the ECG rhythm and vital signs are more relevant to the client's acute cardiac condition.
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