- Joined
- Oct 19, 2009
- Messages
- 3,858
Also for any blood donation rookies donating to the red cross. They will take your BP after the finger prick. If either number is over 160 or 100 respectively they will turn you away. No big deal right? Wrong. Often times the people working there are well intentioned but not in the know about a lot of things. If you have a 17.5" arm or bigger you must be tested with the so called larger cuff. A big arm in the normal cuff will sckew the reading by dozens of points. For myself I was once refused at red cross because they tested me at 148/104 and I was like holy shitballs 104 diastolic! The next day I say my MD and they put the larger cuff on me 118/78. The nurse said the cuff size alone can make that much difference