a patient with hypokalemia and heart failure is admitted to the telemetry unit the nurse is aware that hypokalemia could cause which of the following
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Nursing Elites

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Fluid and Electrolytes ATI

1. A patient with hypokalemia and heart failure is admitted to the telemetry unit. The nurse is aware that hypokalemia could cause which of the following abnormalities on an electrocardiogram (ECG)?

Correct answer: D

Rationale: The correct answer is D: Elevated U wave. Hypokalemia is associated with ECG changes such as an elevated U wave and flattened T waves. Choice A, a shortened P-R interval, is not typically seen in hypokalemia. Choice B, an inverted T wave, is more commonly associated with ischemia or CNS injury rather than hypokalemia. Choice C, a depressed U wave, is not a typical ECG abnormality seen in hypokalemia. Therefore, the correct ECG abnormality associated with hypokalemia is an elevated U wave.

2. The healthcare provider is evaluating a patient's laboratory results. Based on the laboratory findings, what results will cause the release of an antidiuretic hormone (ADH)?

Correct answer: A

Rationale: The correct answer is A: Increased serum sodium. When serum sodium levels increase, it triggers the release of ADH by the posterior pituitary gland. ADH helps in retaining water, reducing urine output, and maintaining fluid balance. Choices B, C, and D are incorrect because decreased serum sodium, decrease in serum osmolality, and decrease in thirst do not stimulate the release of ADH.

3. You are caring for a 65-year-old male patient admitted to your medical unit 72 hours ago with pyloric stenosis. A nasogastric tube placed upon admission has been on low intermittent suction ever since. Upon review of the mornings blood work, you notice that the patients potassium is below reference range. You should recognize that the patient may be at risk for what imbalance?

Correct answer: C

Rationale:

4. . A 73-year-old man comes into the emergency department (ED) by ambulance after slipping on a small carpet in his home. The patient fell on his hip with a resultant fracture. He is alert and oriented; his pupils are equal and reactive to light and accommodation. His heart rate is elevated, he is anxious and thirsty, a Foley catheter is placed, and 40 mL of urine is present. What is the nurses most likely explanation for the low urine output?

Correct answer: D

Rationale:

5. The nurse is assessing the patient for the presence of a Chvosteks sign. What electrolyte imbalance would a positive Chvosteks sign indicate?

Correct answer: C

Rationale:

Similar Questions

You are the nurse evaluating a newly admitted patients laboratory results, which include several values that are outside of reference ranges. Which of the following would cause the release of antidiuretic hormone (ADH)?
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