A nurse is assessing a toddler who is 8 hr postoperative following a cardiac catheterization procedure. Which of the following findings should the nurse report to the provider?

A. Oliguria (decreased urine output) is not typically associated with hypokalemia. It can be a symptom of other electrolyte imbalances or kidney dysfunction.

B. Hypertension (high blood pressure) is not a typical finding in a child with hypokalemia. Low potassium levels are more likely to be associated with cardiac dysrhythmias and hypotension.

C. Hyperactive bowel sounds are not directly related to hypokalemia. They can occur in various gastrointestinal conditions, but they are not a specific indicator of potassium
levels.

D. This is the correct answer. Hypokalemia (low potassium levels) can lead to decreased neuromuscular excitability, which can result in hyporeflexia (reduced reflexes). This is an important neurological sign associated with low potassium levels.

A. Negative doll's eye reflex (also known as oculocephalic reflex) is a normal finding in infants. It is a reflexive movement of the eyes in the opposite direction of the head
movement.

B. A sunken anterior fontanel can indicate dehydration, which is a concern. However, in a 2-month-old with heart failure, a high heart rate (tachycardia) may indicate worsening of the heart failure and needs to be addressed promptly.

C. A potassium level of 5.1 mEq/L is within the normal range for infants. While electrolyte balance is important, it is not the priority in this situation.

D. This is the correct answer. A heart rate of 162/min in a 2-month-old infant with heart failure is elevated and requires immediate attention. It may indicate worsening heart
failure or an adverse reaction to the medication (furosemide) being administered. The nurse should assess the infant's condition, notify the healthcare provider, and intervene as necessary.