Urinalysis and Other Information Flashcards
Characteristics of a urine specimen account for this continued popularity:
- Readily available and easily collected
- Urine contains information about many of the body’s major metabolic functions
- Testing of urine with procedures commonly performed in an expeditious, reliable, safe and cost-effective manner.
Reasons for Urinalysis
- Disease diagnosis
- Screening asymptomatic populations for undetected disorders
- Monitoring progress of disease and effectiveness of therapy
Urine Formation
- Ultrafiltrate of Plasma
- Formed at Kidneys
- Average Daily output is 1200mL-1500mL
Normal Daily Output
1200-1500mL (600-2000ml also considered normal)
Oliguria
Decreased Urine Output: 400mL/day (Adults) -Occurs at excessive water loss
Anuria
Cessation of urine flow; suggests severe kidney damage
Nocturia
Increased excretion of urine during the night
Polyuria
Increased Urine Output: >2.5L/day (Adults)
Urine Composition
Urine is normally 95% water and 5% Solutes (Organic and Inorganic)
- Remember that Urine is classified as a
BIOHAZARD
* Observe Standard Precautions
* Requisition Forms are required
- Containers for routine urinalysis:
o Clean and Dry (Sterile)
o Leak Proof
o Screw top lids
o Should have a wide mouth
o Made of clear material
o Recommended capacity: 50mL
o Labelled. (Attached to CONTAINER, not the lid)
Adulteration
- adding other fluid to the urine that will affect the result. (bleach)
Substitution
- using other urine sample
Dilution
- using water, to make sure that the concentration of the drug he/she is taking will be falsely lowered.
mL of urine collected
30-45 mL