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: A

Rationale: The correct statement to include in teaching a client with type 1 diabetes mellitus is that they can still eat sugar, but they must count it in their carbohydrate intake for the day. This is important because clients with type 1 diabetes need to manage their blood glucose levels by calculating their carbohydrate intake, including sugars. Choice B is incorrect because total avoidance of sugar is not necessary, but monitoring and including it in the carbohydrate count is essential. Choice C is incorrect as proteins and fats can also affect blood glucose levels and should be consumed in moderation. Choice D is incorrect since oral hypoglycemic agents are not used in type 1 diabetes mellitus, as insulin replacement therapy is the mainstay of treatment.

Correct Answer: A

Rationale: The initial step in caring for a client at risk for falls is to conduct a fall-risk assessment. This assessment helps the nurse gather crucial data to identify specific risks and individualized needs, guiding subsequent interventions and preventive measures. By completing a thorough assessment, the nurse can develop a targeted plan of care to mitigate fall risk and ensure the client's safety. Placing a fall-risk identification bracelet, providing nonskid footwear, or setting the bed to the lowest position may be important interventions, but these actions should be based on the findings of the fall-risk assessment, making choice A the priority.

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: B

Rationale: The correct answer is B: 'I should consume foods low in sodium.' This statement indicates an understanding of managing hypertension. Excessive sodium intake can lead to increased blood pressure, so reducing sodium consumption is crucial in hypertension management to prevent complications. Choices A, C, and D are incorrect. Consuming foods low in potassium is not typically recommended for hypertension management as potassium-rich foods like fruits and vegetables can be beneficial. Consuming foods high in saturated fats and cholesterol can be detrimental to cardiovascular health and should be limited in individuals with hypertension.