A: Blood hemoglobin
levels vary according
to sex with:
levels vary according
to sex with:
- male 13.5 - 17.5
g/dL, and
- female 12.0-16.0
g/dL
What are Blood Types?
Everybody has a blood type. The most common blood type classification system is the
ABO (say "A-B-O") system discovered by Karl Landsteiner in the early 1900s.
There are four types of blood in the ABO system: A, B, AB, and O. Your blood type is
established before you are born, by specific genes inherited from your parents.
You receive one gene from your mother and one from your father; these two combine to
establish your blood type. These two genes determine your blood type by causing
proteins called agglutinogens (a-GLOO-tin-a-gins) to exist on the surface of all of your
red blood cells.
http://learn.genetics.utah.edu/units/basics/blood/types.cfm
Signs and Symptoms of Anemia?
The main symptom of most types of anemia is fatigue. Other anemia symptoms include:
* Weakness
* Pale skin
* A fast or irregular heartbeat
* Shortness of breath
* Chest pain
* Dizziness
* Cognitive problems
* Numbness or coldness in your extremities
* Headache
Initially, anemia can be so mild it goes unnoticed. But signs and symptoms increase as the
condition worsens.
http://www.mayoclinic.com/health/anemia/DS00321/DSECTION=2
Our Nation's Blood Supply
The FDA is responsible for ensuring the safety of our nation's blood supply. The Center
for Biologics Evaluation and Research (CBER) regulates the collection of blood and blood
components used for transfusion or for the manufacture of pharmaceuticals derived from
blood and blood components, such as clotting factors, and establishes standards for the
products themselves. CBER also regulates related products such as cell separation
devices, blood collection containers and HIV screening tests that are used to prepare
blood products or to ensure the safety of the blood supply. CBER develops and enforces
quality standards, inspects blood establishments and monitors reports of errors,
accidents and adverse clinical events. CBER works closely with other parts of the Public
Health Service (PHS) to identify and respond to potential threats to blood safety, to
develop safety and technical standards, to monitor blood supplies and to help industry
promote an adequate supply of blood and blood products. While a blood supply with zero
risk of transmitting infectious disease may not be possible, the blood supply is safer than
it has ever been.
http://www.fda.gov/cber/blood.htm
Everybody has a blood type. The most common blood type classification system is the
ABO (say "A-B-O") system discovered by Karl Landsteiner in the early 1900s.
There are four types of blood in the ABO system: A, B, AB, and O. Your blood type is
established before you are born, by specific genes inherited from your parents.
You receive one gene from your mother and one from your father; these two combine to
establish your blood type. These two genes determine your blood type by causing
proteins called agglutinogens (a-GLOO-tin-a-gins) to exist on the surface of all of your
red blood cells.
http://learn.genetics.utah.edu/units/basics/blood/types.cfm
Signs and Symptoms of Anemia?
The main symptom of most types of anemia is fatigue. Other anemia symptoms include:
* Weakness
* Pale skin
* A fast or irregular heartbeat
* Shortness of breath
* Chest pain
* Dizziness
* Cognitive problems
* Numbness or coldness in your extremities
* Headache
Initially, anemia can be so mild it goes unnoticed. But signs and symptoms increase as the
condition worsens.
http://www.mayoclinic.com/health/anemia/DS00321/DSECTION=2
Our Nation's Blood Supply
The FDA is responsible for ensuring the safety of our nation's blood supply. The Center
for Biologics Evaluation and Research (CBER) regulates the collection of blood and blood
components used for transfusion or for the manufacture of pharmaceuticals derived from
blood and blood components, such as clotting factors, and establishes standards for the
products themselves. CBER also regulates related products such as cell separation
devices, blood collection containers and HIV screening tests that are used to prepare
blood products or to ensure the safety of the blood supply. CBER develops and enforces
quality standards, inspects blood establishments and monitors reports of errors,
accidents and adverse clinical events. CBER works closely with other parts of the Public
Health Service (PHS) to identify and respond to potential threats to blood safety, to
develop safety and technical standards, to monitor blood supplies and to help industry
promote an adequate supply of blood and blood products. While a blood supply with zero
risk of transmitting infectious disease may not be possible, the blood supply is safer than
it has ever been.
http://www.fda.gov/cber/blood.htm
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