Methanol Blood Test: Toxic Alcohol Poisoning, High Levels, Vision Risk, and Results
A methanol blood test measures the amount of methanol, also called methyl alcohol or wood alcohol, in the blood. Methanol is found in some...
Methemoglobin and Carboxyhemoglobin: Interpreting Abnormal Hemoglobin Toxicity Tests
Methemoglobin and carboxyhemoglobin tests look at hemoglobin that cannot carry oxygen normally. They are often ordered when someone has unexplained low oxygen readings, cyanosis,...
Methemoglobin Blood Test: High Methemoglobin, Cyanosis, Toxicity, Normal Range, and Results
A methemoglobin blood test measures how much of your hemoglobin has changed into a form that cannot carry oxygen normally. Hemoglobin is the protein...
Methotrexate Blood Test: Drug Level, Toxicity, Clearance, Therapeutic Monitoring, and Results
A methotrexate blood test measures how much methotrexate is still circulating in the blood after a dose. It is used most often after high-dose...
Nickel Blood Test: High Nickel, Normal Range, Exposure, Toxicity, and Results
A nickel blood test measures the amount of nickel circulating in the blood, usually to check recent or ongoing exposure. Nickel is a naturally...
Phenobarbital Blood Test: Therapeutic Range, Toxic Level, Seizure Medication Monitoring, and Results
A phenobarbital blood test measures how much phenobarbital is in the blood so a clinician can see whether the dose is likely to control...
Phenytoin Blood Test: Therapeutic Range, Toxic Level, Seizure Medication Monitoring, and Results
A phenytoin blood test measures the amount of phenytoin in the blood to help keep seizure treatment in a safe and useful range. Phenytoin...
Platinum Blood Test: High Platinum, Exposure, Toxicity, Normal Range, and Results
A platinum blood test measures the amount of platinum in a blood sample. It is a specialty toxicology test, not a routine wellness marker,...
Salicylate Blood Test: Aspirin Toxicity, High Levels, Overdose, and Results
A salicylate blood test measures the amount of salicylate in the blood, most often to check for aspirin poisoning or to monitor high-dose aspirin...
Sirolimus Blood Test: Therapeutic Range, Toxic Level, Transplant Drug Monitoring, and Results
A sirolimus blood test measures the amount of sirolimus, also called rapamycin, in whole blood. Sirolimus is an immunosuppressant used after kidney transplant and...
Tacrolimus and Creatinine: Interpreting Transplant Drug Monitoring
Tacrolimus helps protect a transplanted organ by lowering immune activity, but the dose has to stay in a narrow range. Too little can raise...
Tacrolimus Blood Test: Therapeutic Range, Toxic Level, Transplant Drug Monitoring, and Results
A tacrolimus blood test measures the amount of tacrolimus in whole blood so a transplant team can keep the dose strong enough to prevent...
Thallium Blood Test: High Thallium, Normal Range, Poisoning, Toxicity, and Results
A thallium blood test measures the amount of thallium in the bloodstream after a possible exposure to this toxic heavy metal. Thallium is not...
Theophylline Blood Test: Therapeutic Range, Toxic Level, Asthma Medication Monitoring, and Results
Theophylline is an older asthma and COPD medicine that can still be useful for some people, but it needs careful blood level monitoring because...
Therapeutic Drug Monitoring (TDM) Panel: Medication Levels, Therapeutic Ranges, Toxicity, and Results
A therapeutic drug monitoring panel measures the amount of certain medicines in the blood so the dose can be adjusted safely. It is used...
Therapeutic Drug Monitoring Panel: Interpreting Peak, Trough, and Toxic Levels
A therapeutic drug monitoring panel measures selected medication levels in blood so treatment can be adjusted with more precision. It is most useful for...
Toxicology Blood Test Panel: Drugs, Poisons, Alcohol, Overdose, and Results
A toxicology blood test panel checks the bloodstream for substances that may be causing poisoning, overdose, intoxication, organ injury, or unsafe medication levels. It...
Valproic Acid Blood Test: Therapeutic Range, Toxic Level, Seizure Medication Monitoring, and Results
A valproic acid blood test measures the amount of valproate medicine in the bloodstream. Doctors use it most often for people taking valproic acid,...
Vancomycin Blood Test: Trough Level, AUC Monitoring, Therapeutic Range, Toxicity, and Results
A vancomycin blood test measures the amount of vancomycin circulating in the blood so the dose can be adjusted for both effectiveness and safety....
Vancomycin Trough and AUC: Interpreting Antibiotic Monitoring
Vancomycin monitoring helps clinicians give enough antibiotic to treat serious gram-positive infections while lowering the chance of kidney injury from too much exposure. For...