Indicators of Liver Function—Another important organ for the removal of wastes and drugs. Liver enzymes (Look at ALT, AST, GGT, LDH) are usually inside the cell, they are elevated when there is cell damage/death and the enzymes escape increasing levels in the blood stream. Waste products (Look at Ammonia, Bilirubin) accumulate if the liver is not functioning well. Many plasma proteins are manufactured by the liver (Look at Albumin) as well at clotting factors (Look at PT / INR) which can lead to problems with fluid dynamics and coagulation. The liver is the major organ for drug biotransformation. This is the change drugs go through which either degrades or activates the drug. If the liver function is poor either the drug will accumulate or in the case of pro-drugs won't be transformed into a substance usable by the body (Look at drug levels).
Lab tests for Cardiovascular Disease—Cardiac enzymes should be mainly inside the cell and increase in the blood stream when cell damage / death occurs (Look at CK, Troponin). Elevated cholesterol levels are a risk factor for CV disease (Look at Total Cholesterol, HDL, LDL, Triglycerides). Another lab that may indicate risk for CV disease and helps in the diagnosis of congestive heart failure is BNP (B-type natriuretic peptide)
Coagulation Studies—these look at the ability to clot (PTT, PT / INR). Elevations indicate the patient has a greater chance of bleeding. Also look at platelets. If bleeding is occurring they will get used up or if a patient has decreased platelets for other reasons in combination with elevations of coagulation studies there is a greater risk of bleeding. Deep vein thrombosis and pulmonary embolus are examples of problems caused by the presence of undesirable clots (Look at D-Dimer).