Correct Answer: C

Rationale: Obtaining arterial blood gases is a crucial nursing action when caring for a client with an arterial line. This procedure helps assess the client's oxygenation status and acid-base balance accurately. Leveling the transducer with the client's phlebotomy site (A) is important for accurate pressure measurements, but it is not the primary action in this scenario. Flushing the arterial line every 8 hours (B) is a routine maintenance procedure and not the immediate priority. Keeping the client's hand elevated above the heart level (D) is a good practice to prevent swelling, but it is not directly related to the arterial line care in this case.

Correct Answer: C

Rationale: The correct action to reduce the risk of aspiration during enteral feedings is to elevate the head of the bed to 45 degrees. This position helps prevent the reflux of feeding into the lungs. Administering the feeding over 60 minutes (Choice A) does not directly reduce the risk of aspiration. Positioning the client in a supine position (Choice B) increases the risk of aspiration as it promotes reflux. Flushing the feeding tube with water (Choice D) is important for tube patency but does not directly reduce the risk of aspiration.

Correct Answer: D

Rationale: The correct answer is D: Hyperkalemia. In chronic kidney disease, there is decreased renal excretion of potassium, leading to elevated serum potassium levels. Hypokalemia (Choice A) is low potassium levels, which is the opposite finding in this scenario. Hypocalcemia (Choice B) is decreased calcium levels and is not directly related to chronic kidney disease or elevated potassium levels. Hypoglycemia (Choice C) is low blood sugar levels and is not typically associated with chronic kidney disease or high potassium levels.

Correct Answer: C

Rationale: Administering potassium via IV bolus is a malpractice issue due to the risk of cardiac complications. Option A is incorrect as leaving a nasogastric tube clamped after administering oral medication can lead to complications but is not directly linked to malpractice. Option B is incorrect as documenting communication with a provider in the progress notes is a necessary part of nursing practice. Option D is incorrect as placing a yellow bracelet on a client at risk for falls is a safety measure to prevent falls and is not related to malpractice issues.

Correct Answer: A

Rationale: The correct answer is A. Weight gain can indicate myxedema, which is a symptom commonly seen in hypothyroidism. Exophthalmos (choice B) is actually a characteristic finding of hyperthyroidism, not hypothyroidism. Tachycardia (choice C) and heat intolerance (choice D) are also more indicative of hyperthyroidism rather than hypothyroidism.