urine specimen collection (lab)

Question 1

most analyzed specimen in the lab

Answer 1

urine

Question 2

urine is a __ substance

Answer 2

biohazardous

Question 3

waste product of body’s metabolic process

Answer 3

urine

Question 4

organic materials of urine

Answer 4

urea
creatinine
uric acid

Question 5

inorganic materials of urine

Answer 5

chloride
sodium
magnesium
calcium
phosphate

Question 6

urine is __ water

Answer 6

95%

Question 8

t/f: Clean, Reusable, wide-mouthed, and flat-bottom containers with screw caps are recommended in collecting urine

Answer 8

f (disposable)

Question 9

clean containers must be at least __

Answer 9

50mL

Question 10

container for pediatric patients

Answer 10

adhesive bags

Question 11

container for 24-hour specimens

Answer 11

large plastic container

Question 12

__ of urine is best observed by checking it against any printed material

Answer 12

clarity

Question 13

information on the label

Answer 13

px name
id number
date
time

Question 14

urine can be preserved at __ temp

Answer 14

ref temp (2-8C)

Question 15

t/f: label may be put on the lid

Answer 15

f

Question 16

__ must accompany the specimen

Answer 16

requisition form

Question 17

t/f: unlabeled containers must be discarded immediately

Answer 17

f (return/ inform requesting physician)

Question 18

specimen rejection criteria:

Answer 18

unlabeled container
nonmatching labels and requisitions
contaminated specimen / container
insufficient quantity
delayed / improper transport

Question 19

most problems of specimen integrity in urine are caused by __ __

Answer 19

bacterial multiplication

Question 20

formalin may be used in preservation when you only want to test __ __

Answer 20

formed elements

Question 21

composition of urine depends on the patient’s __, and the __ and __ used for collection

Answer 21

metabolic state, timing, procedure

Question 22

in unpreserved urine, color will be:

Answer 22

modified/darkened

Question 23

in unpreserved urine, clarity will be:

Answer 23

decreased

Question 24

in unpreserved urine, odor will be:

Answer 24

increased

Question 25

in unpreserved urine, pH will be:

Answer 25

increased

Question 26

in unpreserved urine, glucose will be:

Answer 26

decreased

Question 27

in unpreserved urine, ketone will be:

Answer 27

decreased

Question 28

in unpreserved urine, bilirubin will be:

Answer 28

decreased

Question 29

in unpreserved urine, urobilinogen will be:

Answer 29

decreased

Question 30

in unpreserved urine, nitrite will be:

Answer 30

decreased

Question 31

in unpreserved urine, blood cells & casts will be:

Answer 31

decreased

Question 32

in unpreserved urine, bacteria will be:

Answer 32

increased

Question 33

increased pH of urine causes __ smell

Answer 33

amoniacal

Question 34

routine specimen preservation

Answer 34

refrigeration (2-8C)

Question 35

types of specimens

Answer 35

random first morning fasting 2-hour post prandial glucose tolerance 24-hour (timed) catheterized midstream clean-catch suprapubic aspiration prostatitis specimen pediatric specimen drug specimen

Question 36

most common type of specimen received; routine screening for obvious abnormalities; collected any time

Answer 36

random specimen

Question 37

__ specimen is prone to contaminants, erroneous results, and is affected by posture

Answer 37

random specimen

Question 38

t/f: dietary intake and activity may alter the results of a random specimen

Answer 38

t

Question 39

ideal screening specimen; not affected by physical activity

Answer 39

first morning specimen

Question 40

specimen used for orthostatic protein confirmation and urine pregnancy tests

Answer 40

first morning specimen

Question 41

specimen that does not contain metabolites from evening meal; recommended for glucose monitoring

Answer 41

fasting specimen

Question 42

specimen collected 2 hours after meal; monitors glucose / insulin therapy

Answer 42

glucose tolerance specimen

Question 43

3 types of specimen used to monitor diabetes mellitus:

Answer 43

fasting 2-hour postprandial glucose tolerance

Question 44

specimen used to correlate renal threshold with patient's ability to metabolize glucose

Answer 44

glucose tolerance specimen

Question 45

specimen required for quantitative results; needed for measuring substances with diurnal variation

Answer 45

24-hour (timed) specimen

Question 46

accurate __ is critical for accurate results in 24-hour (timed) specimen

Answer 46

timing

Question 47

sterile specimen collected from bladder with a catheter

Answer 47

catheterized

Question 48

most common test using catheterized sample is __ and __

Answer 48

culture and sensitivity

Question 49

t/f: in catheterized samples, routine urinalysis must be performed first before culture

Answer 49

f (culture first)

Question 50

specimen alternative to catheterized specimen (less invasive); less contaminated than routine collection

Answer 50

midstream clean-catch specimen

Question 51

specimen completely free of contamination for culture and cytology; most invasive

Answer 51

suprapubic aspiration

Question 52

how many containers are needed in prostatitis specimen collection

Answer 52

3 glass containers

Question 53

specimen used for those suspected with prostate infection; similar collection with midstream clean-catch

Answer 53

prostatitis specimen

Question 54

in prostatitis specimen, which containers are examined microscopically for presence of WBCs

Answer 54

container 1 (first void) and 3 (remaining urine)

Question 55

t/f: only container 3 is examined for chemical tests

Answer 55

f (all 3 glass containers are subjected to chemical tests)

Question 56

collection method for prostatitis specimen:

Answer 56

3-glass collection

Question 57

prostatic infection is present when:

Answer 57

- higher WBC/hpf count: specimen 3 > specimen 1 - bacterial count: specimen 3, 10 times higher than specimen 1

Question 58

specimen 2 in the 3-glass collection serves as the __ for bladder or kidney infection

Answer 58

control

Question 59

documentation from the time of specimen collection until the time of receipt of laboratory results

Answer 59

chain of custody

Question 60

in drug specimen collection, __, __, __ must be documented

Answer 60

proper collection, labeling, handling

Question 61

urine taken within 4 minutes must be __

Answer 61

32.5-37.7C (body temp)

Question 62

t/f: if specimen temperature is out of range, report immediately; collect another specimen asap

Answer 62

t