Term
| Adults have ......... of blood which contains ......... of formed elements and ......... of plasma. |
|
Definition
|
|
Term
| what are the most common WBC? |
|
Definition
| Neutrophils (segmented neutrophils are found more) |
|
|
Term
| what are platelets responsible for? |
|
Definition
|
|
Term
| Samples for the Hematology lab are drawn in which type of a tube? |
|
Definition
|
|
Term
| The plasma of the blood is composed of ......... water and ....... of solutes |
|
Definition
| 92% of water and 8% of solutes |
|
|
Term
| what is the liquid portion of the blood called when the blood is allowed to clot? |
|
Definition
| It is called serum (once the fibrinogen is eliminated out the sample is called a serum sample) |
|
|
Term
|
Definition
| it is the production and the development of the cells characterized by a constant turnover of cells. |
|
|
Term
| The number of cells in the circulation is affected by: |
|
Definition
1. Cell production
2. cell release
3. Cell destruction/survival |
|
|
Term
|
Definition
| The destruction of Red Blood Cells |
|
|
Term
|
Definition
| It is the process by which the body spontaneously stops the bleeding and maintains the blood within the vascular system. |
|
|
Term
|
Definition
| It is a single oxygen molecule attached to the Fe+2 of an alpha chain heme. This causes the displacement of the molecule. The salt bridges between the hemoglobin of the tetrameter are broken. |
|
|
Term
| what are the normal hemoglobins present in the body? |
|
Definition
Hemoglobin A (>95%) on the a2b2
Hemoglobin A2 (2-3%) on the a2g2
Hemoglobin F (<1%) on the a2y2 |
|
|
Term
|
Definition
| It is also known as the fetal Hgb, it can be obtained in adulthood as well. |
|
|
Term
|
Definition
| It is oxidized hemoglobin. (The iron Fe+2 is oxidized to ferric state Fe+3) Hgb is not functional and cannot combine with oxygen. |
|
|
Term
| what is Carboxyhemoglobin? |
|
Definition
| Formed when Hgb is exposed to carbon monoxide. Hg has greater affinity for CO than for O2. The bond is very hard to be broken. |
|
|
Term
|
Definition
| a stable compound of hemoglobin and sulfur. This is irreversible process usually found in patients that have a sulfur containing medication in their body. |
|
|
Term
| Oxyhemoglobin Measurement |
|
Definition
| Measures only functional hemoglobin. |
|
|
Term
| The best method to measure hemoglobin |
|
Definition
| Spectrophotometer ( Drabkins reagents) |
|
|
Term
|
Definition
| it is stable and can be standardized, this method of testing is recommended. |
|
|
