HEMA LAB 17-20

Question 1

preferred anticoagulant for APTT

Answer 1

sodium citrate

Question 2

same lng ng pt ung rpm at number of minutes sa centrifuge

Answer 2

1 500 rpm for 15 mins

Question 3

APTT can measure platelets and factor XIII

Answer 3

false

Question 4

what factors can APTT measure?

Answer 4

factors VIII, IX, XI…also Prekallikren or FLetcher

Question 5

what therapy can APPT monitor

Answer 5

heparin theraphy

Question 6

used to measure the availability of functional fibrinogen

Answer 6

thrombin time

Question 7

when is TT prolonged?

Answer 7

cases of low levels of fibrinogen

• fibrinogen function is impaired
• presence of heparin, fibrin/fibrinogen products and thrombolytics agents(i.e. streptokinase)

Question 8

a soluble plasma protein that is instrumental in the normal coagulation process

Answer 8

fibrinogen

Question 9

another name for fibrinogen

Answer 9

factor I

Question 10

is added to undiluted plasma

Answer 10

low potency thrombin

Question 11

thrombin reagent consists of

Answer 11

• thrombin time reagent (bovine)

- lyophilisate for 1mL

Question 12

end products of thrombin clotting assays

Answer 12

insoluble fibrin polymers

Question 13

basahin niyo nlng ung two stages sa lab manual (TT ito)

Answer 13

ANG INIT DITO SA DORM SHET

Question 14

what do you pour in a wassermann tube up to about one inch from the rim (CRT)

Answer 14

castor oil

Question 15

what do you use to aspirate blood up to the 20 cu mm mark (CRT)

Answer 15

sahli’s pipette

Question 16

what kind of formation do you want to observe on the surface of the drop of blood

Answer 16

formation of dimpling or nipple like protrusion

Question 17

indicates the endpoint of HIRSCHBOECK method

Answer 17

formation of dimpling or nipple like protrusion

Question 18

another name for HIRSCHBOECK method

Answer 18

castor oil method

Question 19

is stefanini or test tube method a qualitative or a quantitative test?

Answer 19

quantitative

Question 20

where do you place 3-5 ml of venous blood (stefanini method)

Answer 20

chemically clean wassermann tube

Question 21

do you use a water bath in the test tube method? (CRT)

Answer 21

yes

Question 22

observe the tube at what succession of hours? (CRT)

Answer 22

1, 2, 16, 18, 24 hours

Question 23

what to do when blood adheres to the wall of the tube (CRT)

Answer 23

rim the clot with a stiff straight wire to detach the clot from the wall of the tube

Question 24

Retraction begins within how many hours

Answer 24

1 hour

Question 25

Retraction usually ends within how many hours

Answer 25

18-24 hours

Question 26

what method of CRT are you using when there is a glass rod and a cork

Answer 26

Mac Farlane

Question 27

examine the blood for evidence of coagulation at what minute interval ? (CRT)

Answer 27

5-10 mins

Question 28

where do you place the sphygmomanometer cuff in the HESS test?

Answer 28

around the arm just above the elbow

Question 29

midway between the systolic and the diastolic pressure for 5 minutes

Answer 29

Quick’s

Question 30

35 mm Hg for 15 minutes

Answer 30

Gothlin’s

Question 31

how many minutes that have to elapse before you count the number of tiny spots

Answer 31

15-30 minutes

Question 32

grade of 21-50 petechiae

Answer 32

3+

Question 33

grade of 11-20 petechiae

Answer 33

2+

Question 34

number of petechiae in 4+

Answer 34

50 and above

Question 35

HESS test is also called?

Answer 35

Tourniquet test or RUMPEL-LEEDES test

Question 36

normal result of the HESS test

Answer 36

1+ (1-10 petechiae)

Question 37

other method of CRT that uses negative pressure of sufficiant degree to the skin and indirectly to the vascular tissue

Answer 37

suction or petechiometer

Question 38

normal value of the petechiometer method

Answer 38

> 4 petechiae at 200 mm Hg