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Questions and Answers
What are the four parameters required for calculating estimated glomerular filtration rate (eGFR) using the modification of diet in renal disease (MDRD) formula?
What are the four parameters required for calculating estimated glomerular filtration rate (eGFR) using the modification of diet in renal disease (MDRD) formula?
- Serum creatinine, height, weight, age
- Urine creatinine, serum creatinine, height, weight
- Urine creatinine, gender, weight, age
- Serum creatinine, age, gender, race (correct)
Which substance may be measured as an alternative to creatinine for evaluating glomerular filtration rate (GFR)?
Which substance may be measured as an alternative to creatinine for evaluating glomerular filtration rate (GFR)?
- Plasma urea
- Cystatin C (correct)
- Uric acid
- Potassium
Which enzyme allows creatinine to be measured by coupling to a peroxidase reaction?
Which enzyme allows creatinine to be measured by coupling to a peroxidase reaction?
- Creatinine deaminase
- Sarcosine oxidase (correct)
- Creatine kinase (CK)
- Glucose-6-phosphate dehydrogenase
What is the primary reagent used in the Jaffe method for measuring creatinine?
What is the primary reagent used in the Jaffe method for measuring creatinine?
How can interference from other reducing substances be partially eliminated in the Jaffe reaction?
How can interference from other reducing substances be partially eliminated in the Jaffe reaction?
In which case would estimated GFR derived from plasma creatinine likely give a more accurate measurement compared with plasma cystatin C?
In which case would estimated GFR derived from plasma creatinine likely give a more accurate measurement compared with plasma cystatin C?
What is the correct source of creatinine in the body?
What is the correct source of creatinine in the body?
Why is creatinine considered a substance of choice to measure endogenous renal clearance?
Why is creatinine considered a substance of choice to measure endogenous renal clearance?
Which statement regarding creatinine is true?
Which statement regarding creatinine is true?
What is the correct expression for calculating creatinine clearance?
What is the correct expression for calculating creatinine clearance?
Which condition is most likely to cause a falsely high creatinine clearance result?
Which condition is most likely to cause a falsely high creatinine clearance result?
