Lab tests

Question 1

LD or LDH

Answer 1

Lactate dehydrogenase: enzyme found in almost all body cells and release into the plasma when cells are damaged or destroyed.

• General indicator of tissue and cellular damage.
• Used to monitor progressive conditions such as anemia
• High levels seen with: Hemolytic and pernicious anemia, infections, sepsis, AKI, Acute liver disease, acute muscle injury, pancreatitis, bone fractures, certain cancers

Question 2

MMA

Answer 2

Methylmalonic acid

• often ordered with homocysteine test
• used as a follow up to B12 test
• If there is not enough B12 then MMA begins to rise
• The confirmatory test for B12 deficency