Cyclosporine Blood Test: Therapeutic Range, Toxic Level, Transplant Drug Monitoring, and Results
A cyclosporine blood test measures how much cyclosporine is circulating in the blood so the dose can be kept high enough to protect a...
Digoxin Blood Test: Therapeutic Range, Toxic Level, Heart Medication Monitoring, and Results
A digoxin blood test measures how much digoxin is circulating in the blood after someone takes this heart medication. Digoxin can help some people...
Digoxin Level and Potassium: Interpreting Toxicity Risk
Digoxin is a heart medication with a narrow safety margin, so its blood level is most useful when it is interpreted with potassium, kidney...
Ethanol Blood Test: Blood Alcohol Level, Intoxication, Legal Limit, and Results
An ethanol blood test measures the amount of alcohol, or ethyl alcohol, in the blood at the time the sample is collected. It is...
Ethylene Glycol Blood Test: Antifreeze Poisoning, Toxic Level, Kidney Risk, and Results
An ethylene glycol blood test measures the amount of ethylene glycol in the bloodstream after possible exposure to antifreeze, radiator coolant, de-icing fluid, or...
Gentamicin Blood Test: Peak and Trough Levels, Therapeutic Range, Toxicity, and Results
A gentamicin blood test measures how much gentamicin is in the bloodstream after a dose. Gentamicin is an aminoglycoside antibiotic used for serious bacterial...
Heavy Metals Blood Test Panel: Lead, Mercury, Arsenic, Cadmium, Toxicity, and Results
A heavy metals blood test panel checks for toxic metals that can enter the body through old paint, contaminated water, certain jobs, hobbies, foods,...
Isopropanol Blood Test: Toxic Alcohol Poisoning, High Levels, Exposure, and Results
An isopropanol blood test measures the amount of isopropyl alcohol, also called isopropanol or rubbing alcohol, in the bloodstream after a possible toxic exposure....
Lead and Zinc Protoporphyrin: Interpreting Lead Exposure and Iron Deficiency
Lead and zinc protoporphyrin are often ordered together because they tell different parts of the same story. A blood lead level shows how much...
Lithium Blood Test: Therapeutic Range, Toxic Level, Bipolar Medication Monitoring, and Results
A lithium blood test measures the amount of lithium in the bloodstream, usually to make sure bipolar medication is working without reaching a dangerous...
Lithium Level and Kidney Function: Interpreting Therapeutic Drug Monitoring
Lithium can work very well for bipolar disorder, but it needs careful blood test monitoring because the useful dose and the harmful dose are...
Manganese Blood Test: High Manganese, Normal Range, Exposure, Toxicity, and Results
A manganese blood test measures the amount of manganese circulating in the blood, usually to help evaluate possible overexposure rather than routine nutrition. Manganese...
Mercury Blood Test: High Mercury, Normal Range, Exposure, Toxicity, and Results
A mercury blood test measures the amount of mercury circulating in your blood, usually to check for recent or ongoing exposure. It is most...
Mercury Blood Test vs Hair Test: What Is the Difference?
Mercury testing is most useful when the test matches the type and timing of exposure. A mercury blood test usually shows recent or ongoing...
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...