A nurse is reviewing the EKG strip of a client who has prolonged vomiting. Which of the following abnormalities on the client's EKG should the nurse interpret as a sign of hypokalemia?
Inverted P wave
Wide ORS
Elevated ST segment
Abnormally prominent U wave
The Correct Answer is D
A. Inverted P wave: An inverted P wave may indicate atrial depolarization abnormalities but is not typically associated with hypokalemia. It can be seen in conditions such as atrial enlargement or atrial ischemia. However, in hypokalemia, the P wave may become flattened or have a decreased amplitude, but it is less likely to be inverted.
B. Wide QRS: A wide QRS complex may indicate conduction abnormalities or bundle branch blocks, but it is not specifically associated with hypokalemia. Wide QRS complexes are more commonly seen in conditions such as bundle branch blocks or electrolyte imbalances like hyperkalemia. Hypokalemia tends to cause a prolongation of the QT interval rather than widening of the QRS complex.
C. Elevated ST segment: An elevated ST segment is typically associated with myocardial injury or infarction, not hypokalemia. It can be indicative of conditions such as myocardial ischemia or pericarditis. In hypokalemia, ST segment changes are more likely to be flattened or depressed rather than elevated.
D. Abnormally prominent U wave: An abnormally prominent U wave is a classic EKG finding in hypokalemia. Hypokalemia prolongs the repolarization phase of the cardiac action potential, leading to the appearance of U waves following the T wave. These U waves can become more pronounced as potassium levels decrease. Therefore, an abnormally prominent U wave is a significant indicator of hypokalemia on an EKG, especially in a patient with prolonged vomiting, which can lead to potassium depletion. Thus, it is the most pertinent abnormality to interpret in this context.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
To determine the total number of units of insulin to prepare in the insulin syringe, add together the prescribed doses of regular insulin and NPH insulin.
Regular insulin: 14 units NPH insulin: 28 units
Total: 14 units (regular insulin) + 28 units (NPH insulin) = 42 units
Therefore, the nurse should prepare a total of 42 units of insulin in the insulin syringe: 14 units of regular insulin and 28 units of NPH insulin
Correct Answer is A
Explanation
A. Apply 4 to 5 ml of liquid soap to the hands: This is the correct action. Applying an adequate amount of soap ensures effective cleaning of the hands. The recommended amount is typically 3 to 5 ml or enough to cover the entire surface of the hands.
B. Hold the hands higher than the elbows: This is incorrect. When performing hand hygiene, the hands should be held lower than the elbows to prevent water from running down the arms and contaminating previously cleaned areas.
C. Rub hands and arms to dry: This is incorrect. After washing the hands, they should be dried using a clean paper towel or air dryer. Rubbing hands and arms to dry is not recommended as it can lead to friction and potential skin irritation.
D. Adjust the water temperature to feel hot: This is incorrect. The water temperature should be warm, not hot, to prevent skin damage or discomfort. Hot water can strip the skin of its natural oils and lead to dryness or irritation.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.