Normal Lab Values

* Reference values only; normal ranges will vary between labs *

Hematology

Hgb ♂ 13.5-17.5 ♀ 12.0-16.0 g/dl

Hct ♂ 39-49% ♀ 35-45%

RBC’s ♂ 4.3-5.7 ♀ 3.8-5.1 ·108/ l

Plt 150-450·103 / l

WBC 4.5-11.0 ·103 / l

ESR ♂ < 15 ♀ < 20 mm/hr

Fe ♂ 65-175 ♀ 50-170 g/dl

Fe Sat ♂ 20-50 ♀ 15-50%

FDP <10 g/ml

Ferritin ♂ 20-250 ♀ 10-120 ng/ml

Fibrinogen 150-350 mg/dl

Haptoglobin 26-185 mg/dl

Hgb A1C 5.0-7.5%

MCH 26-34 pg

MCHC 33-37%

MCV 80-100 fl

PT 10-14 sec

aPTT 20-40 sec

Retics 0.5-1.5%

TIBC 250-400 g/dl

Transferrin 200-400 mg/dl

TT 13-20 sec

Chemistries

Na+ 135-145 mEq/l

K+ 3.5-5.3 mEq/l

Cl- 95-105 mEq/l

HCO3- 22-29 mEq/l

BUN 10-26 mg/dl

Creat 0.6-1.3 mg/dl

Glucose 70-115 mg/dl

Anion Gap 7-16 mEq/l

Osmolality 275-300 mOsm/kg

Ca++ total: 8.5-10.5 mg/dl

Ionized: 4.65-5.28 mg/dl

Mg+ 1.3-2.4 mEq/l

Phosphate 2.5-4.5 mg/dl

FP <10 ng/mol

Albumin 3.5-5.5 g/dl

Immunoglobin: IgA 70-312 mg/dl
IgG 640-1350 mg/dl

IgM 56-350 mg/dl

Lactate 0.5-1.3 mEq/l

Protein (total) 6.0-8.0 g/dl

Uric Acid ♂ 3.0 - 7.4 ♀ 2.1 - 6.3 mg/dl

Zn 55-135 g/dl

Liver/Pancreas

ALT 0-40 IU/l

Alk Phos ♂ 38-126 ♀ 70-230 U/l

Ammonia 10-50 mol/l

AST 7-40 IU/l

Bilirubin(total) 0.2 – 1.0 mg/dl

Bilirubin(conj) 0 – 0.2 mg/dl

GGT 0-50 U/l

LDH 90-190 U/l

Amylase 25-125 U/l

C peptide 0.70 – 1.89 ng/ml

  • Lipase 10-140
    >60yo 18-180
  • Lipids

    Tot. Cholest. <200 mg/dl

    LDL <130 mg/dl

    HDL ♂ >29 ♀ > 35 mg/dl

    Triglyc. ♂ 40-160 ♀ 35-135 mg/dl

    Other

    CPK ♂ 38-174 ♀ 26-140 U/l

    CPK MB <5%

    Acid Phosphatase <0.8 IU/ml

    B12 100-700 pg/ml

    CA-125 <35 U/ml

    Cu+ ♂ 70-140 ♀ 80-155 g/dl

    Folate 3-15 ng/ml

    Pb <10 g/dl

    PSA <4.0 ng/ml

    Zn++ 70-150 g/dl

    Blood Gasses

     

    Arterial

    Venous

    PH

    7.35-7.45

    7.32-7.42

    pCO2

    35-45

    41-51

    pO2

    80-100

    25-40

    HCO3

    21-27 mEq/l

    24-28mEq/l

    O2 sat

    95-99%

    -

    Urine

    Min Vol. 0.5-1.0 ml/kg/hr

    Spec Gravity 1.015-1.030

    Osmol. 600-1400 mOsm/kg

    Creatinine ♂ 14-26 ♀ 11-20 mg/kg/day

  • Cr Clearance ♂ 100-150 ♀ 90-140 ml/min
    * rough estimate only, varies with BMI
  • Urea Nitrogen 12-20 g/day

    Ca++ 100-300 mg/day

    K+ 25-125 mEq/day

    Na+ 40-220 mEz/day

    PO4- 0.4-1.3 g/day

    Uric acid 250-750 mg/day

    Albumin 10-100 mg/day

    Amylase 1-17 U/hr

    Glucose <0.5 g/day

    Protein 10-100 mg/day

    CSF

  • Pressure 60-180 mmH2O

    WBC 0-5 / l

    Protein 15-45 mg/dl

    Glucose 40-80 mg/dl

  • Synovial Fluid

  • WBC <200 / l

    Trauma, OA, SLE <3000 / l

    Gout, RA >4,000 / l

    Septic >60,000 / l

    Protein <3.0 g/dl

    Glucose >50 mg/dl

    Uric Acid <8.0 mg/dl

    LDH < Serum LDH

  • Endocrine

  • Aldosterone 3-10 ng/dl (Supine), 5-30 upright
  • Cortisol: 0800h 6-23, 1600h 3-15 g/dl,
    2200h
    50% of 0800 value
  • Gastrin <100 pg/ml

  • GH ♂ < 2 ng/ml ♀ < 10 ng/ml

    >60yo ♂ < 10 ng/ml ♀ < 14 ng/ml

  • Estrogen: follicular 60-200, luteal 160-400, menopausal, 130 pg/ml

    FSH: follicular 1-9, ovulation 6-26, luteal 1-9, menopausal 30-118 mU/ml

    LH: follicular 1-12, midcycle 16-104, luteal 1-12, menopausal 16-66 mU/ml

    Progesterone: follicular 0.15-0.7,
    luteal 2.0-25 ng/ml

    Prolactin <20 ng/ml

    PTH 10-65 pg/ml

    Sperm 20-200 million/ml

  • Testosterone(♂) free 52-280 pg/ml,
    Total 300-1000 ng/dl
  • T3 uptake 0.82-1.18

    T3 total 100-200 ng/dl

    T4 total 5.0-12.0 g/dl
    free 0.3-2.3 ng/dl

    TBG 16-34 g/dl

  • TSH <10 U/ml,
    >60yo ♂ 2-7.3 ♀ 2-16.8
    U/ml
  • Toxic Levels

  • Acetominophen >200 g/ml

    CO Hgb >20%

    EtOH (mg/dl in a non-alcoholic patient)
    >100 – intoxicated
    >200 – lethargic
    >300 – coma
    >500 – resp. depression, death

    Ethylene Glycol >20 mg/dl

    Lead >100 g/dl

    MeOH >200 mg/l

    Salicylate >300 g/ml

  •  

     

    Differential Of Cerebral Spinal Fluid

     

    Color

    Opening Pressure

    (mmH2O)

    GLUCOSE

    (mg/100 mL)

    CELLS

    (#/mm3)

    PROTEIN

    (mg/100 mL)

    Adult (nl)

    clear

    70-180

    45-80

    0-5 lymphs

    15-45

    Newborn

    clear

    70-180

    2/3 serum

    40-60 lymphs

    20-120

    Viral infx

    clear/cloudy

    N1/

    1

    10-500 lymphs

    N1/

    Bacterial infx

    cloudy

    dcr

    25-10,000 PMN’s

    TB/fungal

    clear/cloudy

    dcr

    10-500 lymphs

    Subarachnoid

    Hemorrhage

    bloody

    N1

    WBC/RBC ratio same as serum

    Differential Of Ascitic Or Pleural Fluid

     

    TRANSUDATE

    EXUDATE

    Specific gravity

    <1.016

    >1.016

    Protein (ratio of sample to serum)

    <0.5

    >0.5

    LDH (ratio of sample to serum)

    <0.6

    >0.6

    GRAM STAINS AND ORGANISMS

    GRAM+ COCCI

    Clusters:

    Chains:

      Coagulase+ = Staph aureus

    Streptococcus

      Coagulase- =S epidermidis  
    GRAM+ RODS Clostridium, Corynebacterium, Listeria, Bacillus sp.
    GRAM-DIPLOCOCCI Neisseria sp.  
    GRAM- COCCOID RODS Haemophilus sp.
    GRAM-RODS E. Coli, Salmonella, Shigella, Proteus, Enterobacter, Klebsiella, Serratia, Pseudomonas, etc.

    Differential Of Microcytic Anemia

    Disease process

    Ferritin

    Serum Fe

    TIBC

    RDW

    Iron deficiency

    Chronic disease

    Nl/

    Nl

    Sideroblastic anemia

    Nl/

    Nl/

    Nl/

    Nl/

    Thalassemia

    Nl/

    Nl/

    Nl/

    Nl/