Tests on urine can provide clues to many diseases and information about a person's overall health. A routine urine screening test may be done to help find the cause for many types of symptoms. A routine urine test can be done in a doctor's office, clinic, or lab. The patient may also be asked to collect a urine sample at home and bring it with them to the doctor's office or lab for testing.
Tests on a patients blood are also common medical office procedures. Here's how most blood samples are collected: the person drawing blood will wrap an elastic band around your upper arm to temporarily stop the flow of blood through the veins in your arm. This makes it easier to put the needle into a vein properly because the veins below the band get larger and do not collapse easily. The needle site is cleaned with alcohol and the needle is inserted. More than one needle stick may be needed if the needle does not get placed correctly or if the vein cannot supply enough blood. When the needle is properly placed in the vein, a collection tube will be attached to the needle. Blood will flow into the collection tube. Sometimes more than one tube of blood is collected. When enough blood has been collected, the band around your arm will be removed. A gauze pad or cotton ball is placed over the puncture site as the needle is withdrawn. Pressure is applied to the puncture site for several minutes and then a small bandage is often placed over it
Assignment:
1. Read and study textbook pages 247-253
2. Complete the questions on page 265-269
3. Please view the videos below:
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