Correct Answer: A

Rationale: Corrected Rationale: Beta Thalassemia is most common in individuals of Mediterranean descent, such as those from Italy, Greece, and the Middle East. This genetic disorder affects hemoglobin production and can lead to severe anemia. Choice A is the correct answer as individuals of Mediterranean descent are at the highest risk for Beta Thalassemia. Choices B, C, and D are incorrect as they do not belong to the population group most at risk for this genetic disorder.

Correct Answer: B

Rationale: The most effective method to prevent infection in newborns is by practicing proper hand hygiene by staff and family. This is crucial as it helps reduce the transmission of infectious agents, protecting vulnerable newborns. Using disposable items may help, but proper hand hygiene is more effective. Administering prophylactic antibiotics without a specific indication can lead to antibiotic resistance and is not recommended. Isolating the newborn from others is not practical and may not be necessary if proper hand hygiene is maintained.

Correct Answer: C

Rationale: Urinary tract infections are a common cause of sudden onset urinary incontinence in children. While school phobia and ADHD can cause behavioral changes, a medical condition like a UTI should be ruled out first.

Correct Answer: D

Rationale: Reduced serum albumin is a hallmark of minimal change nephrotic syndrome (MCNS) due to massive proteinuria. This results in hypoalbuminemia, which contributes to the edema characteristic of this condition.

Correct Answer: B

Rationale: Phimosis is the condition where the foreskin cannot be fully retracted over the glans penis due to a narrowing of the preputial opening. Chordee, epispadias, and hypospadias are different conditions involving the penis's structure.