A client is in the oliguric phase of acute kidney injury (AKI) which was caused by massive tissue trauma. The nurse notes peaked T-waves and a widened QRS complex on the cardiac monitor. What is the first action the nurse should take?
Check the client's most recent potassium level
Administer a bolus of 1,000 mL of normal saline
Administer potassium chloride intravenously (IV)
Administer sodium polystyrene sulfonate (Kayexalate)
The Correct Answer is A
A. Peaked T-waves and a widened QRS complex on an ECG are often signs of hyperkalemia, which is an elevated potassium level in the blood. This can be a serious complication of acute kidney injury (AKI), especially in the oliguric phase when the kidneys are unable to effectively excrete potassium.A
B. While fluid management is important in AKI, administering a bolus of normal saline is not the first priority in the presence of suspected hyperkalemia. The primary concern is to address the electrolyte imbalance.
C. Administering potassium chloride would worsen hyperkalemia and should be avoided.
D. Kayexalate is a medication used to treat hyperkalemia by exchanging sodium ions for potassium ions in the gastrointestinal tract. However, checking the potassium level is the first step in confirming the diagnosis and determining the appropriate treatment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. MS is an autoimmune disorder affecting the central nervous system, not the kidneys.
B. MG is an autoimmune disorder affecting the neuromuscular junction, not the kidneys.
C. GBS is an autoimmune disorder affecting the peripheral nervous system, not the kidneys.
D. SLE is a systemic autoimmune disorder that can affect multiple organs, including the kidneys. Glomerulonephritis is a common complication of SLE.
Correct Answer is D
Explanation
A. Hemoglobin levels measure the oxygen-carrying capacity of the blood. A reduced ejection fraction (30%) is more closely related to heart failure or significant cardiac dysfunction, which is not directly indicated by changes in hemoglobin levels.
B. Platelet levels are primarily involved in blood clotting and are less directly related to ejection fraction. Elevated or decreased platelet counts are not typically used as indicators of heart failure severity or reduced ejection fraction.
C. In cases of severe heart failure with a reduced ejection fraction, you may see elevated BUN levels due to these effects. However, it is not directly related to heart failure.
D. BNP is a hormone released by the heart in response to increased pressure and volume overload, typically seen in heart failure. Elevated BNP levels are associated with worsening heart failure and can be elevated in patients with a reduced ejection fraction. In heart failure, especially with an ejection fraction as low as 30%, BNP levels are often significantly elevated.
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