lesson 9

Question 1

% of laboratory errors that occur prior to analysis

Answer 1

46%-68%

Question 2

what are the routine handling

Answer 2

1. MIXING TUBES BY INVERSION
2. TRANSPORTING SPECIMENS

Question 3

rupture of RBC

Answer 3

hemolyze

Question 4

Special Handing

Answer 4

1. BODY TEMPERATURE
2. CHILLED SPECIMEN
3. LIGHT-SENSITIVE SPECIMEN

Question 5

can hold temperature for 15 minutes

Answer 5

portable heat blocks

Question 6

used for specimens that can withstand a temperature slightly higher than 37C

Answer 6

HEEL WARMER

Question 7

examples in body temperature

Answer 7

1. COLD AGGLUTININ
2. CYROFIBRINOGEN
3. CYROGLOBULINS

Question 8

slows metabolic process

Answer 8

CHILLING

Question 9

examples of chilled specimens

Answer 9

Adrenocorticotropic hormone (ACTH), acetone, angiotensin-converting enzyme (ACE), ammonia, catecholamines, free fatty acids, gastrin, glucagon, homocysteine, lactic acid, parathyroid hormone (PTH), ph/blood gas (if indicated), pyruvate, and renin

Question 10

There are cases when exposure to light can affect the result of a specimen

Answer 10

LIGHT SENSITIVE SPECIMEN

Question 11

examples of light sensitive specimens

Answer 11

Bilirubin, carotene, red cell folate, serum folate, Vitamin B, Vitamin B, Vitamin B, Vitamin C, urine porphyrins, and urine porphobilinogen

Question 12

routine blood specimen is expected to reach the laboratory within __

Answer 12

45 minutes

Question 13

centrifugation needed by specimen should be done in _____

Answer 13

1 hour

Question 14

delivery time limit exemption examples

Answer 14

STAT or EMERGENCY

Question 15

Blood smear from EDTA specimen

Answer 15

1 hour from collection

Question 16

EDTA specimen for CBC

Answer 16

analyzed within 6 hours
stable 24 hours from collection

Question 17

EDTA specimen for erythrocyte sedimentation rate (ESR) determination

Answer 17

tested 4 hours (room temperature) and 12 hours (refrigerated).

Question 18

EDTA specimen for reticulocyte counts

Answer 18

stable for 6 hours (room temperature) 72 hours if refrigerated.

Question 19

Glucose test drawn in sodium fluoride tubes

Answer 19

-stable for 24 hours (roomtemperature)
-but stable for up to 48 hours when refrigerated at 2°C to 8°C

Question 20

apparatus that is used to separate cells, plasma, or serum of blood specimens.

Answer 20

CENTRIFUGE

Question 21

is achieved by spinning the blood tubes inside the vessel at a high speed such that the centrifugal force will cause the separation of the specimens.

Answer 21

CENTRIFUGATION

Question 22

tubes of the same size and volume should be

Answer 22

placed opposite to one another

Question 23

what specimen needs to be completely clotted prior to centrifugation

Answer 23

SERUM SPECIMEN

Question 24

Prothrombin time (PT) & (PTT)

Answer 24

(PT) - stable for 24 hours
(PTT) - should be analyzed within 4 hours from collection.

Question 25

complete clotting takes around?

Answer 25

30 to 60 minutes at a room temperature

Question 26

refers to a portion of a sample specimen taken for chemical analysis or testing

Answer 26

ALIQUOT

Question 27

OSHA act

Answer 27

OCCUPATIONAL SAFETY AND HEALTH STANDARDS ACT (RA 11058)