Urinalysis and Body Fluids Review Questions and Correct Answers | Latest Update
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Urinalysis and body fluids
Institution
Urinalysis And Body Fluids
All of the following are considered normal functions of the kidney
-:- regulating body hydration, elimination of nitrogenous wastes, regulating
electrolyte balance
The approximate number of nephrons contained in each kidney is:
-:- 1,000,000
The order of blood flow through the nephron is:
...
✓ -:- high salt concentration in the medulla, water-impermeable walls of the
ascending loop of Henle, reabsorption of sodium and chloride from the ascending
loop of Henle
The osmotic gradient of the medulla:
✓ -:- affects sodium reabsorption in the proximal convoluted tubule
Aldosterone regulates sodium reabsorption in the:
✓ -:- distal convoluted tubule
Decreased production of vasopressin:
✓ -:- produces a high urine volume
Production of antidiuretic hormone is controlled by the:
✓ -:- state of body hydration
Substances removed from the blood by tubular secretion include primarily:
✓ -:- protein-bound substances, hydrogen, and potassium
Kidneys with impaired production of ammonia will consistently produce urine with a:
✓ -:- high pH
To enhance the excretion of hydrogen ions, ammonia is produced by the cells of the:
✓ -:- distal convoluted tubule
To maintain the buffering capacity of the blood, hydrogen ions combine with:
Clearance tests used to determine the glomerular filtration rate must measure substances
that are:
✓ -:- neither reabsorbed or secreted by the tubules
Results for glomerular filtration tests are reported in:
✓ -:- milliliters per minute
All of the following are endogenous clearance test substances
✓ -:- urea, creatinine, and beta 2 microglobulin
Performing a clearance test using radionucleotides
✓ -:- eliminates the need to collect urine, provides visualization of the filtration
If a substance is completely filtered by the glomerulus and then completely reabsorbed by
the tubules, the clearance of that substance will be:
✓ -:- zero
The most routinely used laboratory method for measuring the glomerular filtration rate is
the:
✓ -:- creatinine clearance
The most common error in measuring the glomerular filtration rate using the creatinine
clearance is:
4|P a g e | G r a d eA + | 2 0 2 0 2 5
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