Correct Answer: C

Rationale: In children with type 1 diabetes, it is essential to emphasize the need for extra snacks before exercise to prevent hypoglycemia. Choice A is incorrect because exercise typically lowers blood glucose levels, not increases them. Choice B is inappropriate as exercise is beneficial but needs to be managed carefully. Choice D is inaccurate as extra insulin during exercise can lead to hypoglycemia.

Correct Answer: A

Rationale: The priority nursing diagnosis for a 3-day-old girl with Down syndrome, whose mother had no prenatal care, is imbalanced nutrition, less than body requirements related to the effects of hypotonia. Newborns with Down syndrome often experience feeding difficulties due to hypotonia, which can lead to inadequate nutrition intake. Option B is incorrect because at this age, the infant is not capable of having knowledge deficits related to a genetic disorder. Option C is incorrect as delayed growth and development are not the immediate priority in this scenario. Option D is incorrect as impaired physical mobility is not typically a priority concern for a newborn with Down syndrome.

Correct Answer: A

Rationale: The correct answer is 'On the back, lying flat.' Placing infants on their back to sleep is recommended to reduce the risk of sudden infant death syndrome (SIDS). This position promotes safe sleep practices and helps prevent accidental suffocation. Choices B, C, and D are incorrect as placing infants on their side or with the head slightly elevated may increase the risk of breathing difficulties or other hazards during sleep.

Correct Answer: B

Rationale: The correct answer is B: Signs of child abuse. Large welts and scars on a child may be indicative of abuse, making it crucial for the nurse to assess and report any suspicions. Assessing the history of an injury (choice A) may not provide insight into the cause of the welts and scars as effectively as looking for signs of potential abuse. Food allergies (choice C) and recent recovery from chickenpox (choice D) are not directly relevant to the observation of welts and scars on the child's back.

Correct Answer: C

Rationale: The correct answer is C. Excessive thirst (polydipsia) is a common symptom of type 2 diabetes mellitus, indicating high blood glucose levels. This symptom occurs due to the body trying to get rid of excess glucose through urine, leading to dehydration and increased thirst. Choices A, B, and D are incorrect. Choice A is more indicative of a recent viral illness rather than a symptom of diabetes. Choice B, decreased blood pressure, is not typically associated with type 2 diabetes; in fact, diabetes can often lead to hypertension. Choice D, Kussmaul breathing, is more characteristic of diabetic ketoacidosis, which is more common in type 1 diabetes rather than type 2 diabetes.