Kidney Function Tests

Question 1

The glomerulus is the basic structural and functional unit of the kidney

True or false

Answer 1

False

Question 2

Blood cells and proteins are important substances that are allowed to pass freely through the filtering apparatus of the kidneys.

True or false

Answer 2

False

Question 3

The total NPN’s in the blood are breakdown products of protein metabolism.

True or false

Answer 3

True

Question 4

One of the following is an automation method for the determination of urea.

Answer 4

Conductivity rate

Question 5

The best index of kidney impairment because it is constantly removed in the body.

Answer 5

Creatinine

Question 6

What will be the creatinine clearance using the following data:
Urine creatinine- 0,8 mg/dL Serum creatinine= 2,4 mg/dL 24 hr urine volume= 1.4 L Body surface area= 1.8

Answer 6

0.31 ml/min

Question 7

Why is the Lloyds method the reference method for creatinine determination?

Answer 7

It is free from interferences

Question 8

Conversion factor of uric acid

Answer 8

59.5

Question 9

Conversion factor of creatinine

Answer 9

88.4

Question 10

Conversion factor of BUN

Answer 10

0.357

Question 11

Uric acid is derived from the degradation of nucleic acids

True or false

Answer 11

True

Question 12

Reabsorption is the mechanism of holding back the important metabolites which were filtered, and the return of the filtered molecules from the tubes to the blood.

True or false

Answer 12

True

Question 13

This refers to the accumulation of nitrogen containing compounds in the blood.

Answer 13

Azotemia

Question 14

In the determination of total NPN, the first step is the breakdown of these substances in the PFF as:

Answer 14

Ammonia

Question 15

The capillary network producing the blood filtrate that enters the urinary or renal tubules is known as the nephron

True or false

Answer 15

False

Question 16

The determination of serum ammonia may be used for the diagnosis of one of the following

Answer 16

Reye’s syndrome

Question 17

Glomerular filtration is the volume of filtrate produced by both kidneys per minute.

True or false

Answer 17

True

Question 18

Vasopressin is the hormone that controls the reabsorption of sodium

True or false

Answer 18

False

Question 19

This analyte is considered as the best rough guide to renal failure.

Answer 19

Urea

Question 20

One of the functions of the kidneys is the formation of the renal erythropoietic factor which is needed for the synthesis of erythropoietin.

True or false

Answer 20

True

Question 21

The antidiuretic hormone acts on the collecting duct cells stimulating the formation of water channels on the membrane of the cells.

True or false

Answer 21

True

Question 22

One of the methods for uric acid determination measure the amount of hydrogen peroxide formed

Answer 22

Uricase hantzsch method

Question 23

These hormones increased BUN levels

Answer 23

Glucocorticoids and T3 and T4

Question 24

This test measures effective renal plasma flow in the absence of a tubular functional impairment

Answer 24

PAH clearance

Question 25

Caused by obstruction of urine flow anywhere in the urinary tract

Answer 25

Renal

Question 26

Decreased renal function

Answer 26

Post renal

Question 27

Reduced blood flow to the kidneys

Answer 27

Pre renal