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25-Hydroxy Vitamin D
Alternate Names : 25-OH Vitamin D
Today's Top News Stories | • | More Than 60,000 Patients Risked Hepatitis Infections - Jan 06, 2009, 16:00
Poor infection-control practices to blame, U.S. study finds. | • | Clinical Trials Update: Jan. 6, 2009 - Jan 06, 2009, 10:47
- Migraine (Pediatric)
- Gastroesophageal Reflux Disease (GERD)
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Two drugs and a genetic variation are focus of promising studies. | • | Deep Brain Stimulation Helps Those With Advanced Parkinson's - Jan 06, 2009, 16:00
Study found both physical function and quality of life improved. | • | Health Care Spending in U.S. Grew at Lowest Rate in a Decade - Jan 06, 2009, 09:00
But consumers are still paying more for out-of-pocket expenses, reports say. |
Pictures & Images
Blood Test
Today's Top News Stories | • | More Than 60,000 Patients Risked Hepatitis Infections - Jan 06, 2009, 16:00
Poor infection-control practices to blame, U.S. study finds. | • | Clinical Trials Update: Jan. 6, 2009 - Jan 06, 2009, 10:47
- Migraine (Pediatric)
- Gastroesophageal Reflux Disease (GERD)
- Diabetes Mellitus, Type 2
| • | Researchers Report Progress in Fight Against Fat - Jan 06, 2009, 12:00
Two drugs and a genetic variation are focus of promising studies. | • | Deep Brain Stimulation Helps Those With Advanced Parkinson's - Jan 06, 2009, 16:00
Study found both physical function and quality of life improved. | • | Health Care Spending in U.S. Grew at Lowest Rate in a Decade - Jan 06, 2009, 09:00
But consumers are still paying more for out-of-pocket expenses, reports say. |
Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.
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• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• How will the Test Feel?
• Normal Values
• What do Abnormal Results Mean?
• Special Considerations
• Risks
• Pictures & Images
Topics that might be of interest to you Tests & Exams
• Blood Pressure
• Venipuncture
Other Topics
• Adolescent Test or Procedure Preparation
• Bleeding
• Fainting
• Infant Test/Procedure Preparation
• Preschooler Test/Procedure Preparation
• School Age Test/Procedure Preparation
• Toddler Test/Procedure Preparation
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