Other

Question 1

Hemoconcentration

Answer 1

A decrease in the fluid content of the blood by a subsequent increase in nonfilterable large molecule or protein based blood components such as rbcs

Question 2

Ways to help prevent Hemoconcentration

Answer 2

Release fist upon blood flow
Choose an appropriate vein
Do not allow pumping of fist
Do not excessively massage the area
Do not probe or redirect multiple times
Release the tourniquet within 1 minute

Question 3

Hemolysis

Answer 3

When rbcs are damaged or destroyed and the hemoglobin they contain escapes into the fluid portion of the specimen

Question 4

Hemolyzed specimens can erroneously increase…
And decrease….

Answer 4

Increases Ammonia, catecholamines, creatine kinase and other enzymes, like iron, magnesium, phosphate and potassium
Decreases rbcs

Question 5

Procedural errors that can cause specimen hemolysis

Answer 5

Drawing blood through hematoma
Horizontal transport of tubes or rough handling during transport
Mixing additives vigorously
Using a large volume tube with a small diameter butterfly needle