Lab Referance Ranges Flashcards
Calcium, total
8.5-10.5mg/dL
Calculate corrected calcium if albumin is low
Magnesium
1.3-2.1 mEq/L
Decreased due to PPIs, diuretics
Phosphate (PO4)
2.3-4.7 mg/dL
Increased in renal failure
Potassium (K)
3.5-5 mEq/L
Increased due to ACE, ARB, aliskiren, canagliflozin, cyclosporine, tacrolimus, SMX/TMP, NSAIDs
Sodium (Na)
135-145 mEq/L
Decreased due to SSRIs, diuretics, carbamazepine
Bicarbonate (HCO3)
Venous: 24-30 mEq/L
Arterial: 22-26 mEq/L
Decreased to to topimax
Blood Urea Nitrogen (BUN)
7-20 mg/dL
Increased in renal impairment and dehydration
Serum Creatinine (SCr)
0.6-1.3 mg/dL
Anion Gap (AG)
5-12 mEq/L
Increased AG suggests metabolic acidosis
WBCs
4000-11000 cells/mm3
Neutrophils
45-73%
Bands
3-5%
Immature neutrophils
Eosinophils
0-5%
Parasitic infection, allergies
Basophils
0-1%
Hypersensitivity rxn
Lymphocytes
20-40%
Viral infections
RBCs
Males: 4.5-5.5
Females: 4.1-4.9
Hemoglobin
Males: 13.5-18 g/dL
Females: 12-16 g/dL
Mean Corpuscular Volume (MCV)
80-100 fL
Increased when B12 or folate deficiency
Decreased due to iron deficiency
Folic Acid (Folate)
5-25 mcg/L
Vitamin B12
> 200 pg/mL
Decreased due to PPIs, metformin
Antifactor Xa Activity (Anti-Xa)
1-2 IU/mL (therapeutic LMWH)
Obtain a peak anti-Xa 4hrs after SC LMWH
Prothrombin Time (PT)
10-13 seconds
Internationalized Normalized Ratio (INR)
<1.2 for those not on warfarin
Increased INR w/o warfarin is due to liver disease
Activated Partial Thromboplastin Time (aPTT or PTT)
22-38 seconds (“control”)
Treatment goal on UFH: 1.5-2.5x control
Platelets (PLTs)
150,000-450,000/mm3
Albumin
3.5-5 g/dL
Highly bound protein bound drugs are impacted by changes in albumin- warfarin
Phenytoin, valproic acid, and calcium require correction for low albumin
AST - Aspartate Aminotransferase
10-40 units/L
ALT - Alanine Aminotransferase
10-40 units/L
Bilirubin
0.1-1.2 mg/dL
Used to determine other cause of liver damage and detect bile duct blockage
Amylase
60-180 units/L
Pancreatitis
Lipase
5-160 units/L
Pancreatitis
Creating Kinase (CK) or Creatine Phosphokinase (CPK)
Males: 55-170 IU/L
Females: 30-135 IU/L
Muscle inflammation or muscle damage
B-Type Natriuretic Peptide (BNP)
<100 pg/mL
LDL
<100 mg/dL
Total Cholesterol
<200 mg/dL
Fasting begins 9-12hr prior to lipid blood draw
HDL
> 60 mg/dL
Triglycerides
<150 mg/dL
C-Reactive Protein (CRP)
0-0.5 mg/dL
Fasting Plasma Glucose (FPG)
> 125 mg/dL is positive for diabetes
100-125 mg/dL is positive for pre-diabetes
Fasting is 8+ hrs
Hemoglobin A1C
<7% (ADA)
<6.5% (AACE)
Preprandial Blood Glucose
80-130 mg/dL
Postprandial Blood Glucose
<180 mg/dL
Taken 1-2hr after the start of eating
Thyroid Stimulating Hormone (TSH)
0.3-3 mlU/L
Uric Acid
Males: 3.5-7.2 mg/dL
Females: 2-6.5 mg/dL
Erythrocyte Sedimentation Rate (ESR)
Males: <20 mm/hr
Females: <30 mm/hr
CD4+ Lymphocyte Count
800-1,100 cells/mm3
pH
7.35-7.45
Prostate-Specific Antigen (PSA)
<4 ng/mL
Lactic Acid (lactate)
0.5-2.2 mEq/L
Indicates anaerobic metabolism (running, and sepsis)
Vitamin D, serum 25 (OH)
> 30 ng/mL