Correct Answer: C

Rationale: The correct answer is C: Select a large, deep muscle mass. When administering an intramuscular injection with a painful medication volume of 3 ml, selecting a large and deep muscle mass is crucial. This intervention reduces discomfort for the patient and ensures proper absorption of the medication. Choice A is incorrect because instilling the medication quickly can increase discomfort. Choice B is incorrect as inserting the needle slowly may prolong the discomfort. Choice D is incorrect as using a short, small gauge needle may not be suitable for delivering 3 ml of medication effectively into the muscle.

Correct Answer: B

Rationale: The correct answer is B because a client with lupus erythematosus can be safely transferred to the antepartal unit as this condition does not pose a significant risk to other patients or staff. Choices A, C, and D should not be recommended for transfer to the antepartal unit due to the potential risks they may pose to pregnant women and their unborn babies. Chronic hepatitis B, rubella, and herpes lesions of the vulva can be contagious and harmful in the perinatal setting.

Correct Answer: D

Rationale: Maintaining skeletal pin sites and assessing for infection are critical in skeletal traction care.

Correct Answer: C

Rationale: Elevated urine specific gravity is a sign of dehydration in children. In the scenario provided, the child is experiencing increased stool frequency, liquid consistency, fever, and vomiting, indicating fluid loss and potential dehydration. Occult blood in the stool may suggest gastrointestinal bleeding but is not a direct indicator of dehydration. Abdominal distention can be seen in various conditions and is not specific to dehydration. Hyperactive bowel sounds are more commonly associated with increased bowel motility, not necessarily dehydration.

Correct Answer: C

Rationale: Administering the scheduled dose of furosemide is appropriate when a client with heart failure has an elevated BNP level. BNP elevation indicates fluid overload, and furosemide is a diuretic that helps in reducing excess fluid. Measuring the client's oxygen saturation (Choice A) is not directly related to addressing fluid overload. Administering nitroglycerin (Choice B) is not indicated for managing elevated BNP levels. Holding the furosemide dose (Choice D) would delay appropriate treatment for fluid overload.