A nurse is reviewing laboratory values for a client who has systemic lupus erythematosus (SLE). Which of the following values should give the nurse the best indication of the client's renal function?
Serum creatinine
Serum sodium
Blood urea nitrogen (BUN)
Urine-specific gravity
The Correct Answer is A
Choice A rationale:
Serum creatinine is a waste product that is produced by muscle metabolism and is normally excreted by the kidneys.
When kidney function is impaired, creatinine levels in the blood increase, making it a sensitive and specific indicator of renal function.
It is considered one of the most reliable markers for assessing kidney function and is routinely used to screen for and monitor kidney disease.
Choice B rationale:
Serum sodium is an electrolyte that is regulated by the kidneys, but it is not a direct measure of renal function. Sodium levels can be affected by various factors, including fluid intake, medications, and hormonal imbalances.
While abnormal sodium levels can sometimes be a sign of kidney dysfunction, they can also occur due to other conditions, making it less specific as an indicator of renal function.
Choice C rationale:
Blood urea nitrogen (BUN) is another waste product that is produced by the breakdown of proteins and is normally excreted by the kidneys.
However, BUN levels can be influenced by factors other than kidney function, such as dietary protein intake, dehydration, and gastrointestinal bleeding.
This makes BUN less specific than serum creatinine as a marker of renal function.
Choice D rationale:
Urine-specific gravity measures the concentration of solutes in urine, which can provide some information about kidney function.
However, it is not as sensitive or specific as serum creatinine.
Urine-specific gravity can be affected by factors such as fluid intake and hydration status, which can make it less reliable as an indicator of renal function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["033"]
Explanation
Step 1 is to calculate the number of milliliters (mL) that contain the ordered dose of 300 mg of clindamycin.
Step 2 is to divide the total milliliters (mL) from Step 1 by the infusion time in minutes to get the flow rate in mL/hour. Here are the calculations:
Step 1:
900 mg of clindamycin is in 50 mL.
To find the mL that contain 300 mg, set up a proportion:
(300 mg / 900 mg) = (x mL / 50 mL) Cross-multiply and solve for x:
x = (300 mg * 50 mL) / 900 mg x = 16.67 mL
Step 2:
The infusion time is 30 minutes.
Divide the total mL (16.67 mL) by the infusion time in hours to get the flow rate in mL/hour: Flow rate = 16.67 mL / (30 minutes / 60 minutes/hour)
Flow rate = 33.33 mL/hour
Round to the nearest whole number, using a leading zero if it applies, and no trailing zero: Flow rate = 033 mL/hour
Correct Answer is D
Explanation
Choice A is incorrect: Caffeine can worsen sleep disturbances, a common symptom of fibromyalgia.
Choice B is incorrect: While duloxetine is a medication used to manage fibromyalgia symptoms, taking it at a specific time for increased energy is not directly related to understanding the disease itself.
Choice C is incorrect: Fibromyalgia is a chronic condition with no cure. Chemotherapy is not indicated for its treatment.
Choice D is correct: Low-impact aerobics like walking, swimming, or yoga are recommended non-pharmacological interventions for fibromyalgia. They can improve cardiovascular health, flexibility, and pain management.
Additional notes:
Other non-pharmacological management strategies for fibromyalgia include stress management techniques, cognitive behavioral therapy, and adequate sleep hygiene.
Early and comprehensive management of fibromyalgia can significantly improve quality of life.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.