the nurse seeks to assess the renal function of an elderly client who is about to receive a nephrotoxic medication which of the following labs provide

NCLEX-PN

Nclex Questions Management of Care

1. The healthcare professional seeks to assess the renal function of an elderly client who is about to receive a nephrotoxic medication. Which of the following labs provides the best indicator for renal function?

A. urinalysis
B. creatinine and blood urea nitrogen
C. chemistry of electrolytes
D. creatinine clearance

Correct answer: D

Rationale: In the context of an elderly client, assessing renal function before administering a nephrotoxic medication is crucial. While urinalysis and blood urea nitrogen provide valuable information on hydration status and overall health clues, they are not specific indicators of renal function. The chemistry of electrolytes may show abnormalities in renal failure, but it does not directly measure the kidneys' ability to eliminate waste. Creatinine clearance, on the other hand, is considered the best indicator for renal function in the elderly. This test accounts for decreases in lean body mass that can affect blood creatinine levels and is widely used to estimate the glomerular filtration rate, reflecting the kidneys' filtration capability. Therefore, creatinine clearance is the most appropriate lab test to assess renal function in this scenario.

2. An 80-year-old aphasic CVA client had abdominal surgery 2 days ago. Which of the following puts this client at the highest risk for inadequate pain management?

A. Inability to turn, cough, and breathe deeply
B. Inability to communicate pain
C. Inability to ambulate freely
D. Inability to use a bedside commode

Correct answer: B

Rationale: The correct answer is B: Inability to communicate pain. In this scenario, the client's aphasia prevents them from verbally expressing their pain, which can lead to inadequate pain management if the healthcare team is not vigilant. The nurse must use alternative methods to assess and address the client's pain. Choices A, C, and D, although important considerations in postoperative care, do not directly relate to the client's ability to communicate pain, which is crucial for effective pain management in this case.

3. What spinal change occurring with pregnancy alters mobility?

A. Scoliosis.
B. Kyphosis.
C. Lordosis.
D. Ankylosing spondylitis.

Correct answer: C

Rationale: The correct answer is 'Lordosis.' During pregnancy, the enlarging uterus places increased weight on the spine, causing an exaggerated inward curvature known as lordosis. This change alters mobility by shifting the center of gravity forward, leading to a compensatory change in posture. Scoliosis (choice A) is a sideways curvature of the spine, not typically associated with pregnancy. Kyphosis (choice B) is an exaggerated outward curvature of the spine, while ankylosing spondylitis (choice D) is a chronic inflammatory condition affecting the spine, neither of which are directly related to the spinal changes seen in pregnancy.

4. What sign might the nurse observe in a client with a high ammonia level?

A. coma
B. edema
C. hypoxia
D. polyuria

Correct answer: A

Rationale: Coma is a sign that a nurse might observe in a client with a high ammonia level. Elevated ammonia levels can lead to hepatic encephalopathy, a condition characterized by impaired brain function, which can progress to coma. Edema (choice B) is swelling caused by excess fluid trapped in body tissues, not typically associated with high ammonia levels. Hypoxia (choice C) is a condition of inadequate oxygen supply to tissues and is not directly related to high ammonia levels. Polyuria (choice D) refers to excessive urination and is not a typical sign of high ammonia levels.

5. Which of the following enzymes is indicative of pancreatitis?

A. alkaline phosphatase
B. acid phosphatase
C. creatine phosphokinase
D. amylase

Correct answer: D

Rationale: Amylase is elevated in conditions of pancreatic inflammation, such as pancreatitis. Pancreatitis is characterized by the inflammation of the pancreas, leading to the leakage of amylase into the bloodstream. Elevated levels of amylase are a key diagnostic marker for pancreatitis. Alkaline phosphatase is associated with liver and bone conditions, not pancreatitis. Acid phosphatase is more related to prostate health and is not specific to pancreatitis. Creatine phosphokinase is found in tissues like muscle and brain, and elevated levels are seen in conditions like muscle injury or heart attack, not pancreatitis.