Hematologic

Question 1

WBCs

Answer 1

4,500-11,000 /uL

• Part of immune system, fight infections/disease
• 5 types: (Never let monkeys eat bananas)
• aka leukocytes

Question 2

RBCs

Answer 2

F: 4.2-5.2 x10^6/uL
M: 4.7-6.1 x10^6/uL

-Transport oxygen to body cells

Question 3

Hematocrit (HCT)

Answer 3

F: 36%-48%
M: 39%-54%

• Percent blood is RBCs
• Can figure out by multiplying Hgb x3

Question 4

Activated Partial Thromboplastin Time (aPTT)

Answer 4

Normal 30-40 seconds
-on heparin therapy: 1.5-2.0 times the normal value

-How it takes for blood to clot
-Aka effectiveness of heparin
“numbers are low, clots will grow”

Question 5

Hemoglobin (HGB)

Answer 5

F: 12-16 g/dL
M: 13-18 g/dL

• Iron containing proteins found in blood
• Transports oxygen from lungs to tissues
• Returns CO2 from tissues to lungs

Question 6

Platelets (PLT)

Answer 6

150,000- 450,000 /uL

• Help blood clot
• aka thrombocytes

Question 7

Prothrombin Time (PT)

Answer 7

Normal 10-12 seconds
On warfarin therapy: 1.5-2.0 times normal value

• Amount of time needed for blood to clot
• Effectiveness of heparin

Question 8

International normalized ratio (INR)

Answer 8

Normal <1
On warfarin INR 2.0-3.0 / INR 2.5-3.5 heart valve replacement

-Calculated from PT and monitors oral anticoagulants

Question 9

D-Dimer

Answer 9

< 0.5 mag/mL

• Helps to determine if clots are present in body
• low = negative and high=positive