(2026/2027) | Newest Version | A+ Verified
• WBC level Newborn . CORRECT ANSWER: 9-30 Billion cells/L until 2 weeks old
• WBC Levels in Adults . CORRECT ANSWER: 3.4 to 9.6 billion
• 5 types of WBC . CORRECT ANSWER: Neutrophils
lymphocytes
monocytes
eosinophils
basophils
• Usually What WBC is the largest . CORRECT ANSWER: Neutrophils
• What WBC type is the largest as a newborn . CORRECT ANSWER: Lymphocytes
until 8 years old
• Leukopenia . CORRECT ANSWER: less than 4000
* viral infection
* bacterial infection
* bone marrow issue
• Severe leukopenia . CORRECT ANSWER: less than 500
can be at risk for fatal infection dying of even a cold
• when is leukocytosis common . CORRECT ANSWER: during pregnancy due to
increased neutrophils
• What wbc type elevates with allergies . CORRECT ANSWER: Eosinophils
• what wbc type elevates with infections (bacterial and viral) . CORRECT ANSWER:
Viral: lymphocytes
bacterial: neutrophils
• Hemoglobin (Hgb) what does it go . CORRECT ANSWER: carries oxygen throughout
the body making up 95% of dry wt of RBC
• Hemoglobin is what type of structure . CORRECT ANSWER: quaternary structure
made of 4 globular proteins (2 alpha/2beta) with an iron center for o2 binding
• Erythocytosis and 6 causes . CORRECT ANSWER: elevated Hgb caused by:
polycythemia, high altitude, heart disease, copd/pulm disease, dehydration, renal issue
, • anemia and at least 5 causes . CORRECT ANSWER: low hbg, due to :
iron deficiency or vitamin b12 /folate deficiency, chronic renal failure, aplastic anemia,
bone marrow issue, leukemia, lymphoma, or blood loss
• Normal Hgb levels . CORRECT ANSWER: 11.6-16.6g/dl
• when hgb is abnormal be concerned of what . CORRECT ANSWER: blood oxygen
carrying capacity concern
• Hematocrit Hct what is it . CORRECT ANSWER: percentage of overall solution:
packed cell volume of RBC
• normal hct level . CORRECT ANSWER: 35.5 to 48.6%
• Hgb compared to hct . CORRECT ANSWER: Hct= hgb x3
• loss of plasma volume from the vascular space does what to hct . CORRECT
ANSWER: increases it: think dehydration, severe burn, elevated hct
• overhydration does what to hct . CORRECT ANSWER: decreases hct: not necessarily
bleeding
• right after hemorrage what happens to rbc and plasma . CORRECT ANSWER: its an
equal loss of both rbc and plasma until hrs later whaen interstial fluid shifts into vascular
space decreases hct
• how many days does bone marrow take to make rbc . CORRECT ANSWER: 7 days
to make them
• risk of hypovolemic shock during acute or chronic loss . CORRECT ANSWER: acute
due to no time to compensate: think dialysis vs hemorrhage
• less than 15% of hct . CORRECT ANSWER: cardiac failure
• greater than 60% of hct . CORRECT ANSWER: spontaneous blood clot
• what happens to hct during pregnancy . CORRECT ANSWER: in last trimester hct
decreases due to increased plasma volume
• Platelet count norms and function . CORRECT ANSWER: 135-371 billion/L
function to prevent bleeding
• decreased platelets mean . CORRECT ANSWER: risk for bleeding
• increased platelets means . CORRECT ANSWER: increased risk for blood clots