Tests 2
Terms
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- RBC
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determines actual number of cells in relation to volume
4.6 - 6.2 man
4.2 - 5.4 woman
3.2 - 5.2 child - WBC
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establishes amount and maturity of wbc elements
adult 5,000 - 10,000
child 5,000 - 13,000 - hemoglobin
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determines amount of hemoglobin in 100 ml of blood
man 13-18 g/dl
woman 12-16 g/dl
child (3-12 years) 11 - 12.5 gm/dl - hematocrit
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measures percentage of rbc per flulid volume of blood
man 42-50
woman 40 - 48
child 35-45 - bleeding time
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measures duration of bleeding after standardized skin incision -- properative screening
1-9 minutes - PTT
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monitors effectiveness of heapartin therapy -- detects coagulation disorders
20-45 seconds
aPTT should be 1.5 to 2.5 times normal if patient is receiving heparin therapy - platelet count (thrombocyte count)
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diagnose hemorrhagic diseases -- thrombocytopenia
100,000 - 400,000/mm3 - PT
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monitors effectiveness of coumadin therapy - detects coagulation disorders
9.5 - 12.0 seconds
PT should be 1.5 to 2.0 times the control with therapy - Sedimentation rate (ESR)
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speed at which RBCs settle in well-mixed venous blood -- indicates inflammation
man 0-15 mm/h
woman 0 - 20 mm/h - glucose tolerance test
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ability of body to secrete insulin in response to hyperglycemia
fasting 60-110 mg/dl
1 hour 190
2 hour 140
3 hour 125 - total cholesterol
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evaluates tendency for athlerosclerosis
*overnight fast
optimal is less than 200
borderline 200-239
high - greater than 239 - LDL
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determines whether elevated cholesterol levels are caused by increased LDL or HDL
*fast for 12-14 hours
optimal less than 139
borderline 140-160
high greater than 160 - HDL
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same as for LDL
man 35-70
woman 35-85 - creatinine
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test renal function
*NPO 8 hours -- list meds pt. is taking on lab slip
adult 0.6 - 1.5
child 0.4 - 1.2 mg/dl
infant 0.3 - 0.6 mg/dl - alkaline phosphatase
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evaluates liver and bone function
*NPO 8-12 hours -- list meds pt is taking on lab slip
adult 30 -150 units/L
infant and adolescent up to 104 FU/L - Serum albumin
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detect protein malnutrition
3.5 - 5.5 g/dL - BUN
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evaluate renal function
values affected by protein intake, tissue breakdown and fluid volume status
7-18 mg/DL
over 60 -- 8/20 mg/DL