Lab Values ANCC Exam Questions and Complete Solutions Graded A+.

  WBC (White Blood Cell) - Answer: Non-Blacks: 4,500 - 11,000 Blacks: 3,000 - 10,000 Hgb (Hemoglobin) - Answer: M: 14 - 18 F: 12 - 16 Hct (Hematocrit) - Answer: M: 42 - 54% F: 36 - 48% [Note: 3x the value of Hgb] MCV (Mean corpuscular volume) - Answer: 80-100 MCHC (Mean corpuscular hemoglobin concentration) - Answer: 32 - 36% RDW (red cell distribution width) - Answer: 11.5 - 13.5% Serum Folate - Answer: 3 - 17 B12 - Answer: >250 Serum Iron - Answer: 50 - 150 TIBC (Total Iron Binding Capacity) - Answer: 250 - 450 Ferritin (indirect measure of iron stored in tissues) - Answer: 20 - 300 Plt (Platelets) - Answer: 150 - 400 (x 10³) ESR (Erythrocyte sedimentation rate) - Answer: 0 - 20 (mm/hr) PT (Prothrombin time) - Answer: 11 - 14 (sec) INR (International normalized ratio) - Answer: 0.8 - 1.2 Therapeutic INR Range for Anti-coagulation Therapy - Answer: 2 - 3 pH - Answer: 7.35 - 7.45 (slightly lower upper/lower limits for >60yo) Sodium - Answer: 136 - 146 Chloride - Answer: 98 - 106 Potassium - Answer: 3.0 - 5.5 A1c (glysolated hemoglobin) - Answer: <6.5% FBG (Fasting Blood Glucose) - Answer: 70 - 105 2 hour postprandial: < 140 Random Plasma Glucose - Answer: <200 >200: diagnostic of diabetes SCr (Serum Creatinine) - Answer: 0.5 - 1.2 BUN (Blood urea nitrogen) - Answer: 7 - 18 Calcium - Answer: 8.5 - 10.5 (total) Albumin - Answer: 3.5 - 6.0 AST - Answer: <45 ALT - Answer: <40 ASL/ALT Ratio - Answer: <2 ... >2 indicative of alcohol abuse Isolated GGT Elevation - Answer: Indicative of alcohol abuse Amylase - Answer: 0 - 130 TSH (Thyroid stimulating hormone) - Answer: 0.1 - 5.0 Free T4 (Free Thyroxine) - Answer: 9 - 24 Total T3 (Tri-iodothyronine) - Answer: 70 - 132 Total Cholesterol - Answer: <200 HDL (High density lipoprotein) - Answer: >40 LDL (Low density lipoprotein) - Answer: <130 (healthy, no CV r/f) <100 (up to 2 CV r/f) <70 (diabetic, sig. CV risk factors) PSA (prostate specific antigen) - Answer: 40-49: <2.5 50-59: <3.5 60-69: <4.5 70-79: <6.5 (in general, <4.0)