True umbilical cord knots are seen in approximately 1% of births and are associated with the following conditions EXCEPT

Correct Answer: A

Rationale: True umbilical cord knots are more likely to occur with long cords and are not associated with short cords. The other conditions can increase the risk of cord knots.

Correct Answer: A

Rationale: Early introduction of fish, eggs, meat, and wheat has been shown to decrease allergy risks. However, rye has not been found to provide a protective effect and may sometimes contribute to allergic responses.

Correct Answer: C

Rationale: Wheezing is common but not always present in asthma, especially in silent chest or mild cases. Key features include episodic airflow obstruction, reversibility, and control with inhaled corticosteroids.

Correct Answer: A

Rationale: Acute epiglottitis presents with high fever, drooling, and airway obstruction, often requiring emergency care.

Correct Answer: A

Rationale: Frequent beta-agonist use can cause tremors, irritability, tachycardia, and hypokalemia, but bradycardia is not a common side effect.