Correct Answer: D

Rationale: An S3 heart sound can be a normal finding in pregnancy due to increased blood volume and flow. In this scenario, there is no immediate need for further interventions. Documenting this finding in the client's record is essential for tracking the client's health status and ensuring proper follow-up if needed. Notifying the healthcare provider, limiting fluids, or preparing for an echocardiogram is unnecessary as it is likely a physiological finding in pregnancy. These interventions should only be considered if other symptoms suggestive of a cardiac issue are present.

Correct Answer: B

Rationale: Fruity breath odor in a client with diabetes mellitus type 1 can indicate ketoacidosis, a serious complication. Measuring the client's capillary blood glucose is the priority nursing action in this scenario as it helps diagnose and manage the condition effectively. Evaluating intake and output may be important for overall assessment but not the priority when dealing with a potential emergency like ketoacidosis. Consulting with a dietitian about the client's diet is important for long-term management but not the immediate priority. Applying a pulse oximeter is not relevant to addressing the fruity breath odor and suspected ketoacidosis.

Correct Answer: B

Rationale: The correct answer is B. The client with Addison's disease and a blood sugar level of 62mg/dl (3.44 mmol/l) is experiencing hypoglycemia, which can progress to adrenal crisis. This situation requires immediate attention to prevent further complications. Choices A, C, and D, although concerning, do not pose an immediate life-threatening risk compared to the client with Addison's disease and hypoglycemia. The adolescent arguing about his insulin dose can be addressed after stabilizing the client with Addison's disease. The adult with high blood sugar and increased urine output may have hyperglycemia but is not in immediate danger. The client taking corticosteroids who is disoriented needs evaluation but is not in an acute life-threatening condition as the client with hypoglycemia.

Correct Answer: B

Rationale: The correct answer is B. Each child has a 25% chance of having sickle cell anemia if both parents are carriers of the trait. Choice A is incorrect because not all future children will be carriers; some may have the disease. Choice C is incorrect as both male and female children can inherit the sickle cell disease trait. Choice D is incorrect as the chance is not fixed at one out of four; each child has an independent 25% chance of having the disease.

Correct Answer: A

Rationale: Elevating the head of the bed to 30 degrees is done to reduce abdominal pressure on the diaphragm, aiding in lung expansion and oxygenation. This position helps improve respiratory mechanics by allowing the diaphragm to move more effectively. Choice B is incorrect as elevating the head of the bed does not directly promote retraction of the intercostal accessory muscles of respiration. Choice C is incorrect because although elevating the head of the bed can assist with airway clearance, its primary purpose in ARDS is to decrease pressure on the diaphragm. Choice D is incorrect because reducing pressure on the medullary center is not the main goal of elevating the head of the bed; the focus is on enhancing lung function and oxygen exchange.