BM2_CP_Lab

Question 1

Ms. Sean peripheral smear showed this field below. If this field appears similar in 5 fields. What could be her estimated platelet count? *

12,000/uL
60,000/uL
100,000/uL
300,000/uL

Answer 1

60,000/uL

Question 2

Transfusion of 1 unit of platelet concentrate containing approximately 0.7 X 1011 platelets should cause this platelet count increase in your patient: *

5000 to 10,000/ μl
7,000-12,000/ μl
10,000-15,000/μl

Answer 2

5000 to 10,000/ μl

Question 3

Bleeding time is a screening test for the following EXCEPT: *

Sufficiency of platelets number (indirectly)
Speed on small cutaneous blood vessel constriction to control bleeding
Disorders of platelet function, both congenital and acquired
Monitoring tests on patients who had been on heparin therapy

Answer 3

Monitoring tests on patients who had been on heparin therapy

Question 4

How many platelets do you expect to see per 100X field (OIF). in the blood smear if your patient is thrombocytopenic? *

below 8 platelets
below 15 platelets
below 25 platelets

Answer 4

below 8 platelets

Question 5

When is the ideal time a Physician should be requesting for the blood smears of a patient suspected for Malaria? *

after exposure to the vector mosquito
first day of afebrile state
at height of fever
just prior to the next anticipated fever spike

Answer 5

just prior to the next anticipated fever spike

Question 6

Estimate this patient’s blood platelet count: *

need more data
normal
thrombocytopenia
thrombocytosis

Answer 6

thrombocytopenia

Question 7

If each unit of random platelet concentrate could increase platelet count by 5000 to 10,000 / μl, how many units of Platelet Concentrate will you order to bring Ms. Sean’s count to normal? *

None is needed
5 bags
9 bags
26 bags

Answer 7

9 bags

Question 8

Complications of Deep venipuncture in infants EXCEPT: *

venous constriction followed by gangrene
Syncope
damage to organs or tissues accidentally punctured
cardiac arrest

Answer 8

Syncope

Question 9

A 40 y.o. patient was rushed to the emergency room fur to difficulty of breathing. Chest X-ray show bilateral pleural effusion. Thoracentesis was done which revealed whitish, cloudy fluid. Which of the following findings will confirm a Chylothorax condition? *

triglycerides values 2.0mmol/l; cholesterol 5mmol/L
triglycerides values 2.3mmol/l; cholesterol 7mmol/L
triglycerides values 1.2 mmol/l; cholesterol 5.5mmol/L
triglycerides values 1.0mmol/l; cholesterol 6.8mmol/L

Answer 9

triglycerides values 2.0mmol/l; cholesterol 5mmol/L

***Triglycerides values 1.0 mmol/1; cholesterol 6.8 mmol/L

Question 10

NORMAL VALUES *

Normal bleeding time

1-3minutes
3 to 6 minutes

Answer 10

1-3minutes

Question 11

NORMAL VALUES *

Normal clotting time

1-3minutes
3 to 6 minutes

Answer 11

3 to 6 minutes

Question 12

Identify the layer referred to: *

Serum

A
B
C
All
None

Answer 12

None

Question 13

Identify the layer referred to: *

increased in volume in Polycythemic patient

A
B
C
All
None

Answer 13

None/C???

Question 14

Identify the layer referred to: *

affected in hypovolemia

A
B
C
All
None

Answer 14

All

Question 15

Identify the layer referred to: *

decreases in dehydration

A
B
C
All
None

Answer 15

C

Question 16

Identify the layer referred to: *

decreases in anemia

A
B
C
All
None

Answer 16

C

Question 17

Identify the layer referred to: *

increases in leukocytic leukemia

A
B
C
All
None

Answer 17

B

Question 18

STANDING PLASMA TEST: *

c

1
11a
11b
111
1V
V

Answer 18

11b

Question 19

STANDING PLASMA TEST: *

D

1
11a
11b
111
1V
V

Answer 19

V

Question 20

STANDING PLASMA TEST: *

B

1
11a
11b
111
1V
V

Answer 20

11a

Question 21

STANDING PLASMA TEST: *

A

1
11a
11b
111
1V
V

Answer 21

1

Question 22

FACTORS affecting Bleeding & Clotting Time: *

Hemophilia

Increased Clotting Time
Increased Bleeding Time
Both

Answer 22

Both

Question 23

FACTORS affecting Bleeding & Clotting Time: *

von Willebrand’s disease

Increased Clotting Time
Increased Bleeding Time
Both

Answer 23

Both

Question 24

FACTORS affecting Bleeding & Clotting Time: *

factor XI deficiency

Increased Clotting Time
Increased Bleeding Time
Both

Answer 24

Both

Question 25

FACTORS affecting Bleeding & Clotting Time: * factor XII deficiency Increased Clotting Time Increased Bleeding Time Both

Answer 25

Increased Clotting Time

Question 26

FACTORS affecting Bleeding & Clotting Time: * factor V deficiency Increased Clotting Time Increased Bleeding Time Both

Answer 26

BOth

Question 27

FACTORS affecting Bleeding & Clotting Time: * factor II deficiency Increased Clotting Time Increased Bleeding Time Both

Answer 27

Increased Clotting Time

Question 28

Clotting time is used to diagnose the following EXCEPT: * monitoring aspirin therapy clotting factor deficiency to screen a disorder in the intrinsic pathway of Coagulation.

Answer 28

monitoring aspirin therapy

Question 29

Blood extracted that are lesser in volume of what is required in an Anticoagulated Tube (Short draws) could lead to the following: * dilution of blood by excessive EDTA RBC morphology & shapes may be affected excessive anticoagulant prolongs coagulation times B & C only All

Answer 29

All

Question 30

Given these population of platelets in 5 high power fields- 25, 36, 41, 20, 57- what is the expected Platelet count of your patient? * 645 X 103/µL 450 X 103/µL 537 X 103/µL

Answer 30

537 X 103/µL

Question 31

A CBC result of your patient with multiple hematomas revealed the following: ^markedly increased Leukocyte Count; ^decreased in RBC count, Hematocrit, and Hemoglobin; ^normal platelet count- The best thing to do next is: * Tell the patient to come back 1 week after Order a repeat CBC Request a Peripheral Smear Review Prescribe antibiotics to patient

Answer 31

Request a Peripheral Smear Review

Question 32

Prolonged bleeding time occur at this level of platelet count: * > 450,000/cumm < 100,000/cumm < 150,000/cumm > 150,000/cumm

Answer 32

< 100,000/cumm

Question 33

Which of the following conditions is the MOST contraindication for venipuncture in adults? * extreme obesity severe burns thrombotic tendencies geriatric patients

Answer 33

severe burns

Question 34

In a patient whose Bleeding Time has persisted despite discontinuation of drugs that interfere with platelet functions, the next test to do is to confirm this condition: * myeloproliferative disorder renal failure.. von Willebrand’s disease liver disease.

Answer 34

von Willebrand’s disease

Question 35

Given these population of platelets in 5 high power fields- 25, 36, 41, 20, 57- what is the expected Platelet count of your patient? INTERPRET YOUR RESULT: * cannot be determined thrombocytosis normal thrombocytopenia

Answer 35

thrombocytosis

Question 36

After centrifugation for these 2 Capillets filled with capillary blood, compute for the percentage of Packed Red Cell Volume over the Total blood volume, otherwise called Hematocrit. Then interpret each. [2 answers each row] * A 63.9 % 15.6% 12.4% 80.7% Anemic Polycythemic

Answer 36

63.9 %/Polycythemic

Question 37

After centrifugation for these 2 Capillets filled with capillary blood, compute for the percentage of Packed Red Cell Volume over the Total blood volume, otherwise called Hematocrit. Then interpret each. [2 answers each row] * B 63.9 % 15.6% 12.4% 80.7% Anemic Polycythemic

Answer 37

80.7%/Polycythemic

Question 38

Iatrogenic anemia of infants could most likely result from: * repeated capillary puncture umbilical artery leakage repeated venipuncture bleeding during delivery

Answer 38

repeated capillary puncture

Question 39

After extracting blood from your patient, you handed the blood to the Laboratory. But The Med Tech on duty complained, because the hemolysed specimen you extracted could increase the following tests, EXCEPT: * Potassium Erythrocyte Sedimentation Rate Lactate Dehydrogenase Sodium

Answer 39

Sodium

Question 40

Which vessels are the best or most preferable sites for venipuncture? (antecubital fossa) * 2 &6 1 & 5 3 & 4 2 & 4

Answer 40

2 & 4