Estimates LDL cholesterol from total cholesterol, HDL, and triglycerides.

Calculates non-HDL cholesterol (total cholesterol minus HDL).

Estimates VLDL cholesterol from triglycerides.

Calculates the serum anion gap, with optional albumin correction.

Corrects total serum calcium for abnormal albumin concentration.

Calculates the ratio of total cholesterol to HDL cholesterol, a cardiovascular risk indicator.

Calculates the calcium-phosphate product, used to assess risk of soft tissue/vascular calcification (especially in CKD).

Calculates the ratio of LDL cholesterol to HDL cholesterol.

Calculates the delta gap and delta ratio from Na, Cl, and HCO3 to help classify mixed acid-base disorders.

Estimates serum osmolality from sodium, glucose, and BUN, with an optional osmolar gap if measured osmolality is known.

Converts between HbA1c and estimated average glucose (eAG) using the ADAG study formula.

Estimates corrected sodium from measured sodium and glucose using an explicitly selected correction factor.

Converts blood urea nitrogen and urea between common reporting units.

Corrects the calculated anion gap for an albumin concentration below the reference value.

Converts serum creatinine between mg/dL and µmol/L.