LABORATORY MANUAL IN HEMATOLOGY

Question 1

What are the methods of obtaining blood specimens?

VAS

Answer 1

• Skin puncture
• venipuncture
• arterial puncture

Question 2

This is commonly obtained using skin puncture

Answer 2

Capillary puncture

Question 3

Capillary puncture is commonly obtained using what method?

Answer 3

Skin puncture

Question 4

Venous blood is obtained by what method?

Answer 4

Venipuncture

Question 5

This is obtained by arterial puncture

Answer 5

Arterial blood

Question 6

This method is not included in current medical technology practice in the Philippines

Answer 6

Arterial blood extraction

Question 7

This is obtained from the tip of the 3rd or 4th finger or the earlobe in adults

Answer 7

Peripheral blood

Question 8

Peripheral blood is obtained from what body part/s in adults

Answer 8

from the tip of the 3rd or 4th finger or the earlobe in adults

Question 9

In obtaining peripheral blood, wipe the area with a cotton ball soaked in what?

Answer 9

70% isopropyl alcohol

Question 10

The puncture depth in obtaining a peripheral blood sample must be how deep?

Answer 10

2-3 mm in depth

Question 11

Difficulty in obtaining blood can be relieved how?

Answer 11

By putting warm compress on the site

Question 12

This is essential for tests that require anticoagulation (except for microtechniques) and when a large quantity of blood is needed

Answer 12

Venipuncture

Question 13

Why is venipuncture the most convenient method of blood collection?

Answer 13

Because it reduces the number and variety of apparatus required

Question 14

Venous blood is usually obtained from what veins?

Answer 14

antecubital veins

Question 15

What are these antecubital veins?

Answer 15

• median cubital
• cephalic
• basilic

Question 16

Venipuncture can be performed using what (2) methods?

Answer 16

• syringe method
• evacuated tube method

Question 17

The tourniquet must be how many inches above the puncture site?

Answer 17

3-4 inches

Question 18

In what manner must the tourniquet be tied?

Answer 18

in a half-knot manner

Question 19

In what manner must the tourniquet be tied?

Answer 19

in a half-knot manner

Question 20

What is the recommended needle gauge to be used for syringe method?

Answer 20

20-21 gauge needle

Question 21

At what angle must the syringe be inserted?

Answer 21

15 degree angle

Question 22

in syringe method, how deep must the syringe go?

Answer 22

0.5 - 1 cm

Question 23

What is the additive in plain red tube?

Answer 23

none

Question 24

At how many minutes will the blood clot in a plain red tube?

Answer 24

clot formation in 30mins

Question 25

Plain red tube is used for what?

Answer 25

• blood chemistry
• serology
• blood banking

Question 26

Which lavendar tube is contained in a glass?

Answer 26

Liquid K2EDTA

Question 27

Which lavendar tube is contained in plastic?

Answer 27

spray-dried k2 edta

Question 28

What are the additives in a lavendar tube?

Answer 28

• liquid k2 edta
• spray-dried k2 edta

Question 29

What is the function of the additives present in the lavendar tube?

Answer 29

binds calcium to prevent clotting

Question 30

How many times must the lavendar tube be inverted?

Answer 30

8 times

Question 31

Lavendar tube is used for blood cell counting

True or False

Answer 31

true

Question 32

What is the additive present in light blue (glass) tube?

Answer 32

3.2 sodium citrate

Question 33

What is the additive present in light blue (plastic) tube?

Answer 33

3.8 sodium citrate