Cellular Regulation Flashcards
The process of RBC production is called what?
Erythropoeis
Erythropoietin is primarily produced by what?
Kidneys
The life span of a RBC is about?
120 days
What is a hormone secreted by the kidneys that increases the rate of production of RBC’s in response to falling levels of oxygen in the tissues?
Erythropoietin
What is the term used to describe the average volume of RBC’s?
Mean Corpuscular Volume (MCV)
What is the term used to describe the percentage of RBC’s that contains hgb?
Mean Corpuscular Hemoglobin Concentration (MCHC)
What are reticulocytes?
Immature RBC’s
If hct is increased what should you assess for?
Dehydration
If hgb is decreased what does that mean?
Decrease oxygen to the tissues
Hyperplasia is sometimes a normal alteration in what?
Cell growth
The cellular alteration where a cell loses the appearance of the parent cell is known as what?
Anaplasia
What is the term used to describe any new mass of cells that has no physiological purpose?
Tumor
What is the term for programmed cell death and occurs in normal cells?
Apoptosis
The ability of a cancer cell to travel and grow in another part of the body is referred to as what?
Metastasis
The average lifespan of a WBC is what?
12-18hrs
The time it takes for a stem cell to mature into a neutrophil is?
10-14 days
What is the main function of RBC’s?
To carry oxygen t/o body
What are normal hct levels?
Men: 39-50%; Women: 35-45%
What are normal WBC levels?
4,500-10,000mcl
What is a normal platelet count?
150,000-400,000mcl
What are normal hgb levels?
Men: 14-18g/dl; Women: 12-16g/dl
What are alterations in cellular regulation?
Deficient cell production
Defective production of cells
Destruction of cells
Excessive blood loss
What is the term used to describe an increase in # or density of normal cells?
Hyperplasia
What is the term used to describe a cell is normal for its type but not in its normal location?
Metaplasia
