The following labs are supported by DrYang.org:

Chem 10 with serum osmolarity, anion gap, and corrected calcium
CBC with differential, MCV, RDW
PT, INR, PTT
reticulocyte count, reticulocyte index, ferritin, iron, iron binding capacity, %iron saturation, transferrin, soluble transferrin receptor, folate, vitamin B12, haptoglobin, uric acid, LDH, fibrinogen, D-dimer, heparin assoc. antibody, CMV IgG, CMV IgM, HIV Ab, CD4 count, Hepatitis B SAb, Hepatitis C Ab panel, Hepatitis C viral load, RPR, Protein C, Protein S, DRVVT, homocysteine
LFTs, albumin, prealbumin, total protein, GGT
amylase, lipase, lactate, ammonia
CK, CK-MB, troponin I, BNP, aldolase
tacrolimus, sirolimus, cellcept, cyclosporine, vancomycin, digoxin, methotrexate, amikacin, gentamicin, phenytoin, acetaminophen, salicylate, lithium
HbA1C, microalbumin, TSH, free T3, total T3, free T4, total T4, total cholesterol, LDL, HDL, triglycerides, cortisol, Vitamin D 25, growth hormone, ACTH, HCG subunit, 5-DHEA, FSH, LH, IGF3, prolactin, somatomedin-C (IGF1), total testosterone, % free testosterone, free testosterone
ESR, CRP, hsCRP, Cylex, C3, C4, ANA, dsDNA, AFP, CEA, HCG, PSA, CA 19-9, CA-125, Free Kappa chains, Free Lambda chains, Kappa/Lambda ratio
ABG/VBG
Urine drugs of abuse screen
Cultures with antibiotic sensitivities (works best with cultures that have one set of antibiotic sensitivities)
CSF labs

Urine:
UA: Color, specific gravity, pH, blood, bilirubin, ketones, glucose, protein, nitrites, leuk esterase, RBCs, WBCs, epis
Urine lytes: Na, Urea, Cr, Osm, Protein, Protein:Cr, albumin, microalbumin, K, Cl, HCO3, Eos, FeNa, FeUrea

Note about reticulocyte index:

Reticulocyte index is calculated by the method described by Bessman in Clinical Methods, 1990. This method was chosen because it provides for a continuously variable correction factor rather than the quantum jumps found in other formulas, such as a change from 1.0 to 1.5 when going from Hct: 41 to Hct: 40.5 according to the formula in the Housestaff Handbook/Palm MedCalc:

Correction factor    
Hct Bessman MedCalc Mdcalc.com
10 4.5 2.5 2.5
15 3 2.5 2.5
20 2.25 2 2.5
25 1.8 2 1.5
30 1.5 1.5 1.5
35 1.285714 1.5 1
40 1.125 1.5 1
45 1 1 1

The values for reticulocyte index generally correlate, but there are differences:

Retic=2 Hct Bessman MedCalc Mdcalc.com Retic=6 Hct Bessman MedCalc Mdcalc.com
10 0.1 0.2 0.18     10 0.3 0.5 0.5
15 0.2 0.3 0.27     15 0.7 0.8 0.8
20 0.4 0.4 0.44     20 1.2 1.3 1.3
25 0.6 0.6 0.74     25 1.9 1.7 2.2
30 0.9 0.9 0.89     30 2.7 2.7 2.67
35 1.2 1 1.56     35 3.6 3.1 4.67
40 1.6 1.2 1.78     40 4.7 3.6 5.33
45 2 2 2     45 6 6 6