Laboratory Tests

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  1. RBC
    • actual number of cells in relation to volume
    • men: 4.6-6.2
    • women: 4.2-5.6
    • child: 3.2-5.2
  2. WBC
    • amount and maturity of white blood cell elements
    • adult: 4,500-11,000
    • child: 5,000-13,000
  3. HgB
    • amount of hemoglobin in 10 ml of blood
    • man: 13-18
    • woman: 12-16
    • child: 11-12.5
  4. HCT
    • percentage of red blood cells per fluid volume of blood
    • man: 42-52%
    • woman: 35-47%
    • child: 35-45%
  5. Bleeding time
    • duration of bleeding after standardized skin incision; used for pre-operative screening
    • range:
    • 1.5-9.5 minutes
  6. Prothrombin Time (PT)
    • monitor effectiveness of warfarin therapy. detects coagulation disorders
    • range: 9.5-12 seconds
  7. Partial Thromboplastin Time (PTT)
    • monitors effectiveness of heparin therapy.  detects coagulation disorders
    • lower limit of normal: 20-25 seconds
    • upper limit of normal: 32-39 seconds
  8. Platelet Count
    • thrombocyte count.  used to diagnose hemorrhagic diseases, such as thrombocytopenia.
    • range: 150,000-450,000
  9. International normalized ratio (INR)
    • monitors effectiveness of anticoagulation therapy.
    • 1.0: normal
    • 2-3normal for therapy in patients with a-fib, DVT, & PE
    • 2.5-3.5: normal for therapy in prosthetic heart valves
  10. Sedimentation Rate (ESR)
    • speed at which RBC's settle in well-mixed venous blood.  indicates inflammation.
    • man <50 years old:15
    • man >50 years old: 20
    • woman <50 years old: 25
    • woman >50 years old: 30
  11. Glucose Tolerance Test (GTT)
    • measures ability of body to secret insulin in response to hyperglycemia
    • fasting: 60-100
    • 1 hour: 190
    • 2 hours: 140
    • 3 hours: 125
  12. Total Cholesterol
    • evaluates tendency for atherosclerosis. patient needs to fast overnight
    • range: 150-200
  13. Low-density Lipoproteins (LDL)
    • determines whether elevated cholesterol levels are caused by increased LDL or HDL. "bad cholesterol"
    • <160: if no CAD & less than 2 risk factors
    • <130: if no CAD and 2 or more risk factors
    • <100: if CAD present
  14. High-density Lipoproteins (HDL)
    • determines whether elevated cholesterol levels are caused by increased HDL or LDL. "good cholesterol"
    • men: 35-70
    • women: 35-85
  15. Creatinine (CR)
    • test of renal function. Client needs to be NPO for 8 hours and list medications client is taking on medication slip.
    • adult: 0.7-1.4
    • child: 0.4-1.2
    • infant: 0.3-0.6
  16. Alkaline Phosphatase
    • evaluates liver and bone function. client must be NPO 8-12 hours and list medications client is taking on medication slip.
    • adult: 50-120 u/L
    • infant & adolescent: up to 104 FU/L
  17. Creatine-Kinase (CK)
    • used to diagnose acute MI. detected in blood 3-5 hours after.  
    • MM bands present: skeletal muscle damage
    • MB bands present: heart muscle damage
  18. Serum Albumin
    • used to detect protein malnutrition.  maintains oncotic pressure which prevents third spacing.
    • range: 3.5-5.5
  19. BUN
    • evaluate renal function. values affected by protein intake, tissue breakdown, & fluid volume changes.
    • range: 10-20
  20. Triglycerides
    • detect risk for atherosclerosis.
    • range: 100-200
  21. Alanine Aminotransferase (ALT)
    • increase liver disease, hepatitis.
    • range: 10-40 (males)
  22. Aspartate Aminotransferase (AST)
    • increase in liver disease, hepatitis.
    • range: 10-40 units (males)

Card Set Information

Author:
wasdo
ID:
332119
Filename:
Laboratory Tests
Updated:
2017-06-09 19:42:23
Tags:
lab
Folders:
NCLEX
Description:
diagnostic lab values, CBC
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