8/23/2019 CHEM 2 Ch 26 Review Questions

1/2

Chemistry exam 3

Ch26 quizbank

1. Renal clearance is thea. Amount of creatinine in the urineb. Volume of urine produced per dayc. Urine concentration of a substance divided by the urine volume per unit of timed. Volume of plasma from which a substance is removed per uint of urine*

2. Claculate the creatinine clearance , given the following information:Serum creatinint 1.2mg/dL

Urine creatinine, 120mg/dL

Urine volume 1750mL/24hr

Body surface area 1.80m2

Answer: 117 mL/min

3. Rheumatic heart disease is a result of infection with which of the following orgnaismsa. Staphylococcus auerusb. Group A streptococci*c. Chlamydia pneumoniaed. Psudomonas Aeruginosa

4. Predict GFR ina 50y/o woman who weighs 60kg using the crockoft gault equation. Her serumcreatinine level is 2.5 mg/dL

Answer 26mL/min

5. The proximal tuble functions toa. Reabsorb ureab. Reabsorb 75% salt and water*c. Form the renal thresholdd. Concentrate salts

6. Creatinine clearance results are corrected using a patients body surface area toaccount fordiffereneces in

a. Ageb. Muscle mass*c. Sexd. Dietary intake

7. The set of results that most accurately reflects severe renal disease isa. Serum creatinine 3.7 mg/dL; creatinine clearance 44mL/min,BUN 88mg/dL*b. Serum creatinine 1.0 mg/dL; creatinine clearance 95mL/min,BUN 43mg/dLc. Serum creatinine 2.0 mg/dL; creatinine clearance 120mL/min,BUN 14mg/dLd. Serum creatinine 1.0 mg/dL; creatinine clearance 110mL/min,BUN 17mg/dL

8. MatchingPrerenal failure disorders causing decreased blood flow to the kidneys, including

congestive heart failure, hemorrhage and shock

Primary renal failure diseases affecting the kidneys, including glomerularnephritis, tubular

necrosis, and inflammation

Postrenal filure caused by obstruction or inflammation of the urinary tract after it leaves

the kidney

8/23/2019 CHEM 2 Ch 26 Review Questions

2/2

Chemistry exam 3

Ch26 quizbank

9. The measurement of serum cystatin C a small protein produced by nucleasted cells is useful for:a. Deiagnosing end-stage renal diseaseb. Monitoring dialysis patinetsc. Detecting an earlydecrease in kidney function*d. Calculating creatinine clearance

10.Renin release by the kidney is stimulated bya. Increased plasma sodium concentrationb. Renal tubual reabsorbtionc. Increased dietary sodiumd. A decrease in extracellular fluid volume or pressure*