LPN Fundamentals Practice Questions

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: The correct answer is B. Decreasing the intake of high-fat foods is essential in managing pancreatitis as high-fat foods can exacerbate symptoms and lead to complications. By reducing high-fat foods in their diet, the client demonstrates an understanding of the dietary management needed for pancreatitis. Choices A, C, and D are incorrect. Increasing high-fat foods (Choice A) is not recommended for pancreatitis as it can worsen the condition. While high-protein foods (Choice C) can be beneficial in some cases, the primary focus in pancreatitis management is on reducing fat intake. Decreasing high-protein foods (Choice D) is not a key dietary management approach for pancreatitis.

Correct Answer: B

Rationale: To prevent dislocation of the hip prosthesis, the client should avoid bending their hips more than 90 degrees. Excessive bending at the hips can increase the risk of hip dislocation, which is a significant concern following total hip arthroplasty. Sitting with crossed legs at the ankles (choice A) can also increase the risk of hip dislocation and should be avoided. Sitting in a low-seated chair (choice C) can make it more challenging for the client to stand up safely. Twisting the body when standing up (choice D) can also strain the hip joint and increase the risk of dislocation. Therefore, the correct instruction to include during discharge teaching is to avoid bending the hips more than 90 degrees.

Correct Answer: A

Rationale: The correct answer is A: 'I should avoid foods that contain gluten.' Celiac disease requires the avoidance of gluten-containing foods to manage symptoms and prevent complications. Gluten is found in wheat, barley, and rye. Choices B, C, and D are incorrect as they do not align with the dietary requirements for managing celiac disease. Increasing intake of foods high in gluten or lactose would be detrimental for someone with celiac disease.

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.