LPN Fundamentals Practice Questions

Correct Answer: D

Rationale: When a client with major fecal incontinence reports irritation in the perianal area, the nurse's initial action should be to assess the client's perineum to gather more information. By checking the perineum, the nurse can identify the extent and nature of the irritation, allowing for appropriate interventions to be initiated. This assessment is crucial in developing a comprehensive care plan and addressing the client's immediate needs effectively. Applying the nursing process priority-setting framework helps in planning care and prioritizing nursing actions, making assessment the initial step in this scenario. Applying a fecal collection system (choice A) would be premature without assessing the perineal area first. Similarly, applying a barrier cream (choice B) or cleansing and drying the area (choice C) should follow the assessment to ensure appropriate interventions are chosen based on the assessment findings.

Correct Answer: B

Rationale: The correct answer is B. Administering an intramuscular injection at a 90� angle is essential for proper medication delivery into the muscle tissue. Injecting at a 45� angle is incorrect for intramuscular injections and is typically used for subcutaneous injections where the needle is inserted into the fatty tissue layer beneath the skin. Choice A is correct as selecting a 25-gauge needle is appropriate for an intramuscular injection. Choice C is also correct as the ventrogluteal site is a suitable site for intramuscular injections. Choice D is correct as aspirating for blood return is a necessary step to ensure the needle is not in a blood vessel before injecting the medication.

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: 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.

Correct Answer: B

Rationale: Measuring the tube from the client's nose to the earlobe to the xiphoid process ensures the tube is inserted to the correct depth. This measurement helps prevent complications such as tube misplacement or lung insertion. Positioning the client with the head of the bed elevated to 30� is important to facilitate easier insertion but is not the most crucial step. Lubricating the entire length of the tube with water-soluble lubricant is essential for smooth insertion but is not the most critical action. Instructing the client to cough during insertion is not necessary and may lead to unnecessary discomfort.