Module 7- miscellaneous procedures

Question 1

What type of urine specimens are collected?

Answer 1

first morning , random , timed collection

Question 2

which urine sample would be collected if we want it to be really concentrated?

Answer 2

first morning specimen (is concentrated and tends to be acidic)

Question 3

what are the 2 types of timed collections?

Answer 3

predetermined by length and time (12hr, 24hr)

• 24hr collections are used for hormones and for creatine clearance tests
• 2hr for collection of urine glucose after any meal

Question 4

what are the 5 collection techniques?

Answer 4

routine, midstream, catherdized, suprapubic aspiration , pediatric collections

Question 5

If a urine sample is left at room temp what changes can occur?

Answer 5

• increased ph
• decreased glucose
• decreased acetoacetic acid
• decreased bilirubin
• nitrate may be falsely increased
• rbc, leuk, and hyaline casts may disintegrate

Question 6

what are some of the internal quality control

Answer 6

chemical control of dipsticks , microscopic controls

Question 7

what are external quality controls

Answer 7

surveys from an outside agency

Question 8

pregnancy tests detect what hormone

Answer 8

hCG- human chorionic hormone

Question 9

when does hCG appear in the urine?

Answer 9

10-12 days after fertilization , peaks at 10 weeks

Question 10

random specimens are collected when?

Answer 10

at any time

Question 11

What principe is most urine strip readers ?

Answer 11

Refractometer

Question 12

Where would midstream urine commonly go to?

Answer 12

Microbiology