Exam 1 Flashcards
Antidiuretic Hormone (ADH) regulates the reabsorption and retains ________
Water
What is the correct pathway of fluid flow after fluid exists the glomerulus?
(5)
- Proximal Convoluted Tubule (PCT)
- Loop of Henle
- Distal Convoluted Tubule (DVT)
- Collecting duct
- Renal Pelvis
Which urine secretory mechanism focuses on the conversion of ammonia (NH3) to ammonium (NH4) by adding a H+ ion
3rd mechanism
What is the most useful way of identifying a fluid as urine?
Creatinine
Role of juxtamedullary nephrons
Concentrate urine
Each kidney contains anout how many nephrons
> 1,000,000
Clearance tests used to determine the glomerular filteration rate must measure substances that are
neither reabsorbed or secreted by the tubules
Where are glomeruli located?
Cortex
What is the highest specific gravity of urine possible?
1.035
Which types of specimen is most common?
Random specimen
Is first morning specimen most or least concentrated?
Most concentrated
What type of test are clearance tests?
Timed testing
Before chemical analysis, a refrigerated urine specimen must be_______
returned to room temperature
How long is an unpreserved urine stable for
2 hours
Uncorrected Creatinine Clearance formula
(Urine Creatinine mg/dL x Urine volume mL/day)
/
Plasma Creatinine mg/dL x Time) = mL/min
