Urine Specimen Collection Flashcards
Wrote the book on uroscopy.
Hippocrates
Discovered protein in urine by boiling it.
Frederick Dekkers
The protein discovered by Frederick Dekkers.
Albuminuria
He wrote the book “Pisse Prophets” in 1672.
Thomas Bryant
He formulated methods of quantitating microscopic sediments.
Thomas Addis
He introduced the concept of urinalysis as a part of a doctor’s routine in patient examination in 1872.
Richard Bright
How is urine formed?
Ultrafiltrate of plasma
What is urine composed of?
95% water & 5% solutes
Average urine volume?
1200 - 1500mL
Reference range of urine output?
600 - 2000mL
Recommended capacity of container for urine collection?
50mL
Urine specimen should be delivered to the lab promptly and tested within _ hours
2 hours (Integrity)
To preserve urine, it must be refrigerated at _ to _ degree Celsius.
2 - 8 degree Celsius (Preservation)
If to be cultured, should be refrigerated during transit until cultured up to _ hours.
24 hours
Major methods in urine collection?
- Voided (Midstream clean catch)
- Transurethral
- Suprapubic
(type of urine specimen)
Most common, taken at any time of the day.
Random
(type of urine specimen)
Has greater concentration of substances, taken in morning.
First Morning
(type of urine specimen)
Used for diabetic screening / monitoring.
Fasting (Second Morning) / 2-Hour Postprandial
(type of urine specimen)
Optional with blood samples.
Glucose Tolerance Test
(type of urine specimen)
Specific time of day always discarded first specimen before timing.
Timed
(type of urine specimen)
Used for quantitative and qualitative analysis of substances.
24-Hour
(type of urine specimen)
Genitalia is cleaned, urine is tested for microorganisms or presence of infection.
Midstream Clean Catch
(type of urine specimen)
Uses bladder urine for bacterial culture.
Suprapubic Aspiration
What types of urine specimens are used for routine screening?
- Random
- First Morning
- Midstream Clean Catch
An alternative to the catheterized specimen.
Midstream Clean Catch Specimen
This determination of level is the most indicative of renal disease.
Protein
Normal level of protein in urine?
10mg/dL or 100mg/ L
Clinical proteinuria is indicated at?
> 30mg/dL or 300mg/L
Most frequent chemical analysis is performed on urine specimen.
Glucose
