The nurse is preparing an older adult client for a magnetic resonance imaging (MRI) with contrast. Which laboratory value should the nurse report to the healthcare provider before the scan is performed?

Reference Range:

Glycosylated Hemoglobin (4% to 5.9% ]

Creatinine 10.6 to 1.2 mg/dL (53 to 106 μmol/L)]

Glucose [74 to 106 mg/dL (4.1 to 5.9 mmol/L)]

Blood Urea Nitrogen [10 to 20 mg/dL (3.6 to 7.1 mmol/L)]

Fasting blood sugar of 200 mg/dl. (11.1 mmol/L).

Serum creatinine of 1.9 mg/dl. (168 μmol/l)

Glycosylated hemoglobin of 8%.

Blood urea nitrogen of 22 mg/dL (7.9 mmol/L)

Answer and Explanation

The Correct Answer is B

B. Creatinine is a waste product of muscle metabolism that is filtered by the kidneys. Elevated serum creatinine levels may indicate impaired kidney function. Since contrast agents can affect renal function, a serum creatinine level above the reference range should be reported to the healthcare provider before the MRI with contrast.

A. While elevated blood sugar levels may indicate diabetes or poor glycemic control, they are not directly related to kidney function or the risk of contrast-induced nephropathy. Therefore, this value is not the most pertinent for reporting before an MRI with contrast.
C. Glycosylated hemoglobin (HbA1c) reflects average blood glucose levels over the past two to three months and is used to assess long-term glycemic control in diabetes. While elevated HbA1c levels suggest poor diabetes management, they do not directly assess kidney function or the risk of contrast-induced nephropathy.
D. Blood urea nitrogen (BUN) levels reflect the amount of urea nitrogen in the blood and can indicate kidney function. Elevated BUN levels may suggest impaired renal function. However, an elevated serum creatinine is a more reliable marker for renal excretion.

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Free Nursing Study Resources

Correct Answer is A

Explanation

A. Rheumatoid factor (RF) is an autoantibody directed against the Fc portion of immunoglobulin G (IgG). In RA, it is an indication of the autoimmune nature of the disease, where the immune system mistakenly attacks the body's own tissues, particularly the synovial membranes in the joints, leading to inflammation, pain, and joint damage.
B. While the presence of an elevated serum rheumatoid factor is associated with the autoimmune process underlying RA, it does not necessarily correlate with disease severity or progression.
C. Rheumatoid factor has no correlation with renal involvement of RA
D. RA is an indicator of autoimmunity in the joint but not necessarily the onset of joint degeneration.

A. Fasting blood sugar of 200 mg/dl. (11.1 mmol/L). B. Serum creatinine of 1.9 mg/dl. (168 μmol/l) C. Glycosylated hemoglobin of 8%. D. Blood urea nitrogen of 22 mg/dL (7.9 mmol/L)

Correct Answer is B

Explanation

B. Creatinine is a waste product of muscle metabolism that is filtered by the kidneys. Elevated serum creatinine levels may indicate impaired kidney function. Since contrast agents can affect renal function, a serum creatinine level above the reference range should be reported to the healthcare provider before the MRI with contrast.

A. While elevated blood sugar levels may indicate diabetes or poor glycemic control, they are not directly related to kidney function or the risk of contrast-induced nephropathy. Therefore, this value is not the most pertinent for reporting before an MRI with contrast.
C.Glycosylated hemoglobin (HbA1c) reflects average blood glucose levels over the past two to three months and is used to assess long-term glycemic control in diabetes. While elevated HbA1c levels suggest poor diabetes management, they do not directly assess kidney function or the risk of contrast-induced nephropathy.
D. Blood urea nitrogen (BUN) levels reflect the amount of urea nitrogen in the blood and can indicate kidney function. Elevated BUN levels may suggest impaired renal function. However, an elevated serum creatinine is a more reliable marker for renal excretion.

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Naxlex Comprehensive Predictor Exams

A client with rheumatoid arthritis has an elevated serum rheumatoid factor. Which interpretation of this finding should the nurse make?

Correct Answer is A

Explanation

Correct Answer is B

Explanation

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