Urine Specimen Types & Collections
A patient collects a UA sample for a creatinine clearance test. What type of UA specimen is this?
Timed
Which component of the nephron is located exclusively in the renal medulla?
Loop of Henle
What factor contributes to urine color?
Urine pH
How may hyaline casts maybe present in a "normal" urine?
0-2
Which form of meningitis is a normal CSF glucose value most often observed?
Viral
A first morning urine specimen is best for screening and for routine urinalysis because it:
Is more concentrated
What is the functional unit of the kidney?
Yellow foam that does not dissipate in the UA sample upon standing indicates what is present?
Protein & billirubin
Integrity of reagent strips is assessed by:
Running QC
Which of the following characterizes a subarachnoid hemorrhage rather than a traumatic spinal tap?
Xanthochromia
How much urine is required for a manually performed routine urinalysis?
10-15 mL
What is the normal range for urine specific gravity?
1.002-1.035
Which UA characteristic indicates the urine concentration and body hydration?
Color
What is the minimum amount of urine that is required for culture before rejection for QNS?
Less than 3 mL
WBC counts of less than 200 WBCs indicate what:
Normal count
What UA specimen type eliminates contamination of the urine with external genitalia and distal urethra?
Midstream clean catch specimen
Daily volume of urine excreted normally ranges:
600-1800 mL/day
The color of normal urine is due to the pigment
Urochrome
What cell is found in urine that contains highly refractile droplets?
Oval fat bodies
Amniotic fluid tests utilize what for the diagnosis of open neural tube defect?
AFP
If refrigerating is used to preserve a UA specimen, what substance may occur?
Amorphous crystals may precipitate
Term that describes excretion of large amounts of urine >3L/day
Polyuria
A urine specimen that does not indicate the presence of blood or hemoglobin has the appearance of:
Cloudy & amber urine
What urine crystal is known to have no clinical significance?
Cholesterol
What is seen in vaginal fluid and can also appear to UA sample that has a flitting or jerky motion?
Trichomonas vaginalsis