unit 4 chapter 15

Question 1

urine contains

Answer 1

excess salts, waste products and small amounts of the many types of molecules that naturally circulate in the bloodstream

Question 2

urine samples should be delivered to lab when

Answer 2

within an hour of collection to prevent the breakdown of unstable compounds

Question 3

types of urine samples

Answer 3

random specimen
timed specimen
first morning specimen
pediatric collection
catheter collection
suprapubic aspiration

Question 4

random specimen

Answer 4

collected anytime
-measures protein, glucose, blood, and other significant constituents of urine
(metabolic abnormalities)
disadvantages may become too dilute bc of fluid intake during the day, throwing off test
such as preg

Question 5

first morning specimen

Answer 5

also called 8 hour specimen
-when pt awakens
-sent to lab with an hour
-ensures the detection of chemicals or pathogens that may not be found in a more dilute random sample

Question 6

timed specimen

Answer 6

series of specimens collected over time, and then combined to
provide a single large specimen
- collected over 2 hours,12, or 24
- meaures amount of protein,creatinie and hormones

Question 7

pediatric collection

Answer 7

collected using a soft,clear plastic bag

Question 8

catheter collection

Answer 8

collected by dr, nurse, or medical assiant
-tube inserted into the urethea into the bladder
-may be used for cultures c and s
-when urinary tract infection is suspected

Question 9

suprapubic aspiration

Answer 9

collected by dr
-needle inserted through the abdominal wall into the bladder
- used for bacterial culture of anaerobes

Question 10

urine samples for drug testing

Answer 10

Reveal presences of many types of drugs and metabolites in bloodstream
* Collected in random sample, chemically clean container
must use chain of custody

Question 11

why collect fecal specimens

Answer 11

• to look foe intestinal infection
  -screen for colorectal cancer
  Microscopic examination of stool for O&P (ova and parasite) from organisms: Giardia
  ▪ Diarrhea-causing bacterial : cholera, salmonella
  ▪ Toxins produce by bacteria : C.Diff

Question 12

occult blood

Answer 12

-fecal specimen for detection of blood in the stool
-Collected 3 days after meat-free diet
* Should be avoided: broccoli, turnips, raw fruits and veggies, Vit C
-pain relivers

Question 13

random specimens is used for
(fecal)

Answer 13

most determinations, inculding bacterial cultures, O&P, and fats and fibers

Question 14

72 hour stool specimens

Answer 14

used for quantitative fecal fat determination
-collected in large container
rarely called for and order when random specimen is positive for excess fat

Question 15

collection for procedure for fecal specimens

Answer 15

Sterile container for collection ( hat in toilet, scoop up )
▪ No contamination of urine
▪ Collected tightly sealed container, and put into plastic bag and transported to lab
-room tempt
collected 24 hours apart