what is the expected ecg finding in a patient with hypokalemia

ATI RN

ATI Capstone Medical Surgical Assessment 1 Quizlet

1. What is the expected ECG finding in a patient with hypokalemia?

A. Flattened T waves
B. Elevated ST segments
C. Widened QRS complexes
D. Widened QRS complexes on the ECG

Correct answer: A

Rationale: The correct answer is A: Flattened T waves. In hypokalemia, there is a decrease in serum potassium levels, which can lead to various ECG changes. One of the classic ECG findings associated with hypokalemia is the presence of flattened T waves. These T wave abnormalities are typically seen in multiple leads. Choice B, elevated ST segments, is not a typical ECG finding in hypokalemia. Choice C, widened QRS complexes, is more commonly associated with hyperkalemia rather than hypokalemia. Choice D is redundant and not a standard way of describing ECG findings.

2. What are the signs of compartment syndrome?

A. Unrelieved pain, pallor, pulselessness
B. Muscle weakness, hyporeflexia
C. Pins-and-needles sensation, swelling
D. Severe swelling and tightness in the affected extremity

Correct answer: A

Rationale: The correct signs of compartment syndrome include unrelieved pain, pallor, and pulselessness due to increased pressure within a muscle compartment. Choice B, muscle weakness, and hyporeflexia are not typical signs of compartment syndrome. Choice C, pins-and-needles sensation and swelling, are not specific signs of compartment syndrome. Choice D, severe swelling and tightness in the affected extremity, could be seen in compartment syndrome but are not the primary signs.

3. A nurse is assessing a client who has a sodium level of 122 mEq/L. Which of the following findings should the nurse expect?

A. Decreased deep tendon reflexes
B. Positive Chvostek's sign
C. Hyperactive bowel sounds
D. Dry mucous membranes

Correct answer: A

Rationale: Corrected deep tendon reflexes occur with hyponatremia. Other manifestations of hyponatremia include headache, confusion, lethargy, fatigue, seizures, and muscle weakness. Positive Chvostek's sign is associated with hypocalcemia, hyperactive bowel sounds are not typically related to hyponatremia, and dry mucous membranes are more commonly seen with dehydration.

4. A client is scheduled for an electroencephalogram (EEG) and a nurse is providing teaching. Which of the following statements by the client indicates an understanding of the teaching?

A. I should not wash my hair prior to the procedure.
B. I will receive a sedative 1 hour before the procedure.
C. I should avoid eating prior to the procedure.
D. I will be exposed to flashes of light during the procedure.

Correct answer: D

Rationale: The correct answer is D. The nurse should inform the client that flashes of light or pictures are often used during the procedure to assess the brain's response to stimuli. Choices A, B, and C are incorrect because washing hair, receiving a sedative, and avoiding eating are not directly related to the EEG procedure.

5. What intervention is needed for continuous bubbling in the chest tube water seal chamber?

A. Tighten the connections of the chest tube system
B. Clamp the chest tube
C. Replace the chest tube system
D. Continue monitoring the chest tube

Correct answer: A

Rationale: The correct intervention for continuous bubbling in the chest tube water seal chamber is to tighten the connections of the chest tube system. Continuous bubbling indicates an air leak in the system, and tightening the connections can help resolve this issue. Clamping the chest tube (Choice B) is not appropriate and can lead to complications by obstructing the drainage system. Similarly, replacing the entire chest tube system (Choice C) may not be necessary if the issue can be resolved by tightening the connections. Continuing to monitor the chest tube (Choice D) without taking action to address the continuous bubbling may delay necessary interventions to prevent complications.