Hema Exam Questions and Answers
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All other factors remaining the same, how does dehydration affect hemoglobin content? - ✔✔*increases*
it
Define *Anemia*... - ✔✔Not enough *RBCs*
Normal range for *RBCs* - ✔✔*4* to *6* Million
RBC's live for - ✔✔8--120 days
Define *Thrombocytopenia*... - ✔✔Not enough *platelets*
Normal range for *WBCs* - ✔✔*5,000* to *10,000*
Normal range for *platelets* - ✔✔*150,000* to *400,000*
Lifespan for platelets? - ✔✔~1 week
Because it is a percentage of red blood cells, as compared to the total volume of blood, any increase or
decrease in plasma volume affects the... - ✔✔Hematocrit
Would a patient's hematocrit to drop immediately after major hemorrhage? - ✔✔*No*
(but soon after, hematocrit will *decrease*, because *plasma is replaced quickly via fluid* intake, while
RBCs take longer to be replaced)
A hematocrit of *less than 15%* can result in... - ✔✔Cardiac Failure
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A hematocrit of *over 60%* may result in... - ✔✔Spontaneous blood clotting
A major reason for anemia in patients with renal failure is lack of _____________ to stimulate bone
marrow production. - ✔✔erythropoetin
If a person with a normal blood cell volume loses blood *suddenly* via hemorrhage, they'd show S/S
shock and hypoxia.
A person with *chronically* low hemoglobin, such as a patient on renal dialysis, may... - ✔✔Tolerate
abnormally low hemoglobin
How a patient responds to a low hematocrit depends on whether the blood loss is... - ✔✔Acute or
Chronic
RBC x3 = HGB
HGB x3 = HCT%
HCT% - ✔✔rough approximation for healthy/normal ranges
RBC = 5
HGB = 15
HCT = 45
White blood cells, or leukocytes, are classified into two main groups: - ✔✔Granulocytes
&
Nongranulocytes (A-granulocytes)
*Phil* works at a *gran*ery - ✔✔Granulocytes = *-Phils*
- Neutrophils
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- Eosinophils
- Basophils
The 2 Non-Granulocytes (Agranulocytes) - ✔✔- Lymphocytes
- Monocytes
WBC and differential
*Normal* range of *WBCs* - ✔✔5,000-10,000
*N*ever *L*et *M*onkeys *E*at *B*ananas - ✔✔*N*eutrophils (60%)
*L*ymphocytes (30%)
*M*onocytes (6%)
*E*osinophils (3%)
*B*asophils (1%)
Leukocytosis - ✔✔increase in WBCs over 10,000
When the platelet count drops below 50,000, its called - ✔✔Thrombocytopenia
When the platelet count drops below 20,000, the patient may have .... - ✔✔Spontaneous bleeding (can
lead to death)
TotalBlood volume in the average body - ✔✔5-6 Liters
Blood is approximately 45% _________ and 55% ___________ - ✔✔45% Blood cells
55% Plasma
Plasma is about 92% _________________ and about 7% ____________ - ✔✔plasma is 92% *water* and 7%
*plasma proteins*
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