Correct Answer: D

Rationale: The amount of hematuria is not a reliable indicator of the severity of renal trauma, as even minor injuries can cause significant bleeding, while severe injuries may result in little or no visible blood. Renal trauma should be evaluated through imaging and clinical assessment.

Correct Answer: A

Rationale: The primary reason for correcting cryptorchidism through surgery is to prevent damage to the undescended testicle, which can lead to infertility and increase the risk of testicular cancer. Prevention of UTIs and prostate cancer are not the primary concerns in this context.

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: D

Rationale: The correct answer is D because babbling is an early indicator of hearing ability in infants. Lack of babbling by 2 months may suggest a potential hearing issue. Choices A, B, and C are incorrect because turning away from a sound, startling with sudden loud noises immediately after birth, and talking at 4 months are not primary indicators of hearing loss in infants.

Correct Answer: B

Rationale: The correct answer is B. Irregular respirations with periodic pauses are normal in a 1-month-old infant. Choice A is incorrect because the normal respiratory rate for an infant at this age is higher than the range provided. Choice C is incorrect as irregular respirations are expected in infants. Choice D is not appropriate as irregular respirations with periodic pauses are a normal finding in young infants and do not necessarily indicate a concern that requires immediate notification of the healthcare provider.