LPN Fundamentals Practice Questions

Correct Answer: C

Rationale: Assisting the client with early ambulation is crucial in preventing respiratory complications after abdominal surgery. Early ambulation helps to prevent conditions like atelectasis and pneumonia by promoting lung expansion and preventing pooling of respiratory secretions. It also aids in improving circulation, reducing the risk of deep vein thrombosis, and enhancing overall recovery. Instructing the client to exhale into an incentive spirometer (Choice A) is beneficial for lung expansion but is more focused on respiratory therapy rather than preventing complications. Repositioning the client every 8 hours (Choice B) is important for preventing pressure ulcers but is not directly related to preventing respiratory complications. Maintaining the client on bed rest for the first 48 hours (Choice D) can lead to complications such as atelectasis, pneumonia, and deep vein thrombosis due to decreased lung expansion and mobility.

Correct Answer: C

Rationale: For infants and young children, the vastus lateralis muscle located over the anterior thigh is the preferred site for intramuscular injections. This site is chosen for its large muscle mass and reduced risk of injury to major nerves and blood vessels. Infants have less developed muscle structures, making the vastus lateralis a safer and more effective site for injections compared to other sites like the deltoid, ventrogluteal, or dorsogluteal. Using the correct injection site is essential to prevent complications and ensure the proper absorption of the medication.

Correct Answer: C

Rationale: The correct answer is C. The Dietary Approaches to Stop Hypertension (DASH) diet is recommended for managing hypertension. Increasing the intake of fruits and vegetables is a key component of the DASH diet as these foods are rich in nutrients that can help lower blood pressure levels. Choices A, B, and D are incorrect because they go against the principles of the DASH diet, which focuses on reducing sodium intake, increasing potassium-rich foods, and consuming whole grains.

Correct Answer: A

Rationale: Elevating the head of the bed to 30� is the correct action to take when a client is receiving continuous enteral feedings through a nasogastric tube. This position helps prevent aspiration of the enteral feedings into the lungs, reducing the risk of aspiration pneumonia. Additionally, elevating the head of the bed promotes proper digestion and absorption of the feedings by utilizing gravity to facilitate movement into the stomach and through the gastrointestinal tract. Flushing the tube with water every 2 hours (Choice B) is not necessary for continuous feedings and may disrupt the feeding schedule. Replacing the feeding bag and tubing every 72 hours (Choice C) is not the standard recommendation unless there are specific concerns or complications. Checking the client's gastric residual every 8 hours (Choice D) is important but not the immediate action needed to prevent aspiration during enteral feedings.

Correct Answer: C

Rationale: In acute renal failure, the kidneys are unable to excrete potassium efficiently, which can lead to hyperkalemia. As a result, an increased potassium level is a common finding in clients with acute renal failure. Hyperkalemia can have serious cardiac effects, making it essential for healthcare providers to monitor and manage potassium levels closely in clients with renal impairment. Choices A, B, and D are incorrect because in acute renal failure, blood urea nitrogen (BUN) and creatinine levels typically rise due to decreased renal function. Calcium levels are more likely to be decreased in acute renal failure due to impaired activation of vitamin D and subsequent decreased calcium absorption.