What is measured in the blood?
Since your blood travels from one end of your body to the other, delivering oxygen to where it’s needed and waste to where it’s processed, the blood contains a lot of information about your health. A typical blood test will measure the following:
- Complete blood count
- Red blood cell count
- White blood cell count
- Platelet levels
- Hemoglobins
- Hematocrit (how much space your red blood cells take up)
- Basic Metabolic Panel
- Calcium
- Electrolytes
- Enzymes
- Lipoprotein panel to measure cholesterol
- Clotting factors
- Liver function
Each of these measurements divulges something about how your body is functioning.
Why is blood drawn?
Blood is typically drawn during an annual physical to perform standard tests that can shed light on your health, such as whether you have any diseases or infections, and just to simply make sure your blood levels are within the norm.
The reasons for drawing blood outside an annual physical depend entirely upon your situation and your reasons for seeking medical care. Blood is a great diagnostic tool and is one of the first things you doctor will turn to to find answers.
How do I prepare for a blood test?
Usually, nothing needs to be done before you get your blood drawn. Some blood tests, however, require that you fast for anywhere from 8-12 hours before you get blood drawn. The staff at Pacific MD can help advise you in how you can prepare for your blood test.
Are there any risks in drawing blood?
Drawing blood is a simple and quick procedure, and usually takes place at a diagnostic or testing center. The procedure itself takes only minutes and involves:
- Tying a band around your arm
- Finding a vein in your arm
- Quickly inserting a needle
- Filling tubes with blood
- Removing the needle
- Placing a bandage on the needle entry point
Side effects are uncommon, but may include some spotting or minor bruising.
