HEMA LEC (SAFETY IN THE LAB)

Question 1

CLASS/TYPE OF FIRE
EXTINGUISHER:
A

Answer 1

Water, dry chemical,
loaded steam

Question 2

TYPE OF
FIRE: A

Answer 2

Ordinary
combustibles:
paper,cloth,
plastic, wood

Question 3

CLASS/TYPE OF FIRE
EXTINGUISHER: B

Answer 3

Dry chemical,
carbon dioxide,
halon

Question 4

TYPE OF
FIRE: B

Answer 4

Flammable
liquids:
grease,
gasoline,
paints, oil

Question 5

CLASS/TYPE OF FIRE
EXTINGUISHER: C

Answer 5

Dry chemical,
carbon dioxide,
halon

Question 6

TYPE OF
FIRE: C

Answer 6

Electrical
equipment and
motor
switches

Question 7

CLASS/TYPE OF FIRE
EXTINGUISHER: D

Answer 7

Metal X; Fought by
fire fighters only

Question 8

TYPE OF
FIRE: D

Answer 8

Flammable
metals: Hg,
Mg, Na, Li

Question 9

CLASS/TYPE OF FIRE
EXTINGUISHER: E

Answer 9

Allowed to burn out
and nearby
materials protected

Question 10

TYPE OF
FIRE: E

Answer 10

Detonation
(Arsenal fire)

Question 11

Green Extinguisher

Answer 11

Halon Extinguisher
(A- Ordinary Combustible)

Question 12

Red Extinguisher

Answer 12

Water Extinguisher
(B- Flammable Liquids)

Question 13

Blue Extinguisher

Answer 13

Dry Powder Extinguisher
(C- Electrical Appliances)

Question 14

Yellow Extinguisher

Answer 14

Foam Extinguisher
(D- Combustible Metals)

Question 15

Black Extinguisher

Answer 15

Carbon Dioxide
Extinguisher (E- Flammable
Gasses)

Question 16

RACE means

Answer 16

Rescue, Alarm, Contain, Extinguish

Question 17

PASS means

Answer 17

Pull, Aim, Squeeze, Sweep

Question 18

provides a barrier against
venous blood flow to help
locate a vein

Answer 18

Tourniquet

Question 19

Tourniquet should be applied____

Answer 19

3 to 4 inches above
venipuncture site

Question 20

Blood specimens for serum
testing must first be allowed
to clot for ____
prior to centrifugation

Answer 20

30-60 minutes

Question 21

Prevents blood from
clotting

Answer 21

ANTICOAGULANTS

Question 22

prevents clotting
by binding to antithrombin
and inhibiting thrombin

Answer 22

Heparin

Question 23

Inhibits metabolism of
glucose

Answer 23

ANTIGLYCOLYTIC AGENTS

Question 24

Tube with sodium fluoride
only = ____

Answer 24

yields serum

Question 25

Tube with sodium fluoride and anticoagulant (EDTA or oxalate) = _____

Answer 25

yields plasma

Question 26

Inert material that serves as separation barrier between liquid and cells

Answer 26

SEPARATOR GEL

Question 27

Gauge for drawing blood range from ____

Answer 27

19-23

Question 28

Most common needle size for adult venipuncture is ____

Answer 28

21

Question 29

needle size for children

Answer 29

22-23 gauge

Question 30

Most common sites for routine venipuncture

Answer 30

Superficial veins of the antecubital fossa

Question 31

Order of preference for veni collection:

Answer 31

-Median/median cubital vein -Cephalic vein -Basilic vein

Question 32

most common; leakage of small amount of blood in tissue around puncture site

Answer 32

Ecchymosis (Bruise)

Question 33

leakage of large amount of blood around puncture site

Answer 33

Hematoma

Question 34

increased concentration of cells, analytes, etc.; leaving the tourniquet for too long; remove for 2 minutes and reaapply

Answer 34

Hemoconcentration

Question 35

-rupture of RBC (escape of Hemoglobin); serum/ plasma appears pink to red

Answer 35

Hemolysis

Question 36

small red spots

Answer 36

Petechiae

Question 37

-Swelling caused by abnormal accumulation of fluid in the intercellular spaces of the tissues -Should be avoided; veins are hard to find and specimen might be contaminated with tissue fluid

Answer 37

Edema

Question 38

-Veins neither readily visible nor easy to palpate -BP cuff could be use to locate a vein (inflated not higher than 40 mm Hg)

Answer 38

Obesity

Question 39

Should be avoided because they do not allow the blood to flow freely

Answer 39

Burned, Damaged, Scarred, and Occluded veins

Question 40

-Should be avoided; draw blood from the opposite arm without IV -If no alternative, draw below the IV site, stop infusion for 2 minutes before drawing blood

Answer 40

Intravenous therapy

Question 41

-The other arm on the side without the mastectomy should be used

Answer 41

Mastectomy patients

Question 42

Technique of choice to obtain blood for newborns and pediatric patients

Answer 42

SKIN PUNCTURE

Question 43

site of choice for skin puncture in infants under 1 year

Answer 43

Lateral or medial plantar surface of the heel

Question 44

children older than 1 year

Answer 44

Palmar surface of the distal portion of the third (middle) or fourth (ring) finger on the nondominant hand

Question 45

recautions with Skin Puncture ● Heel punctures in infants -not more than ___ (risk of bone injury and infection, osteomyelitis)

Answer 45

2mm deep