A nurse in a pediatric clinic is talking with a parent of a toddler. The parent tells the nurse that her toddler drinks a quart of milk a day. The nurse should recognize that the toddler is at risk for which of the following disorders?

A. Cyanosis with crying: Cyanosis is less common in isolated PDA and more indicative of other congenital heart defects. PDA usually results in increased pulmonary blood flow and may not directly cause cyanosis, especially in less severe cases.

B. Weak pulses: PDA typically causes increased pulmonary blood flow and can result in bounding pulses rather than weak ones. Weak pulses are more indicative of reduced cardiac output, which is not characteristic of PDA.

C. Chronic hypoxemia: Chronic hypoxemia is less associated with PDA and more common in cyanotic heart defects where oxygenated and deoxygenated blood mix. PDA primarily affects the volume of blood flow to the lungs and may not lead to hypoxemia unless complicated by other conditions.

D. Machine-like murmur: A characteristic feature of PDA is a continuous, machine-like murmur caused by turbulent blood flow between the aorta and the pulmonary artery. This murmur is a hallmark sign of PDA and is typically heard during auscultation.

A. ``Sweating can occur with hypoglycaemia." Sweating is a common symptom of hypoglycemia due to the activation of the sympathetic nervous system. This statement is accurate and does not require clarification.

B. "My son might have nausea and vomiting with hypoglycemia." Nausea and vomiting are typically associated with hyperglycemia and diabetic ketoacidosis (DKA), not hypoglycaemia. Hypoglycaemia usually presents with symptoms like sweating, shakiness, confusion, and hunger. This statement indicates a misunderstanding that needs to be clarified.

C. ``My son might complain of feeling shaky when he has a low blood glucose level." Feeling shaky is a common symptom of hypoglycemia due to the body's response to low blood glucose levels. This statement is correct and does not need clarification.

D. "The onset of low blood glucose usually occurs rapidly." Hypoglycaemia often has a rapid onset, particularly when caused by factors like excessive insulin or missed meals. This statement is accurate and does not require clarification.