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Blood tests are necessary in the emergency room to gain information quickly for diagnosing and treating medical emergencies. A blood test involves withdrawing a sample of blood and sending it to a lab for analysis.
At Dignity Health, we perform prompt, high-quality blood tests in Arizona at our ERs. Our Phoenix area hospitals are located throughout the Phoenix area. Use our online InQuicker™ tool to select an estimated arrival time to your nearest Dignity Health ER location.
Emergency blood tests fall into the following categories.
In the emergency room, a doctor, nurse, or technician will draw your blood to collect the sample. Depending upon the test, several tubes (vials) of blood may be needed. Once your sample goes to the lab, it may take about an hour to get the results. Your doctor will discuss the results with you.
There are only minor risks from blood tests, including discomfort from the needle and bruising at the site.
The member of your health care team who draws your blood will apply pressure to the site to stop the bleeding. A small bandage with a cotton ball will be applied to absorb any remaining blood. You can usually remove the bandage within a few hours.