How far away from the chart to patients need to be for accurate readings?
1573695
It matters which side of the chart you are using. The number side is 12-14 inches, I think. The Snellen chart is 6 ft.
1691933
I confirm using an old style, non digital Sphygmomanometer. That said, an exact comparison can never be made unless measurement made simultaneously - which isn't done. Even a reading with the Omron will differ when taken moments later. Consequently, accuracy is is considered OK when readings are consistently in the same range.
1289656
I am not sure but I just bought a life source monitor at the the drug store and I consistently get accurate readings on the first try. Once again, I think the sensors in this machine do not work very well. Money not well spent.
1644345
I keep mine on a small table a few feet away from me. I would say the middle of the room would be fine.
945072
It wouldn't be 100% accurate, but close. My guess is the reading would be about 25-50% low.
1566310
Overall I'd say they are pretty close in accuracy, but something to consider is the general size of the patients wrist and upper arm. I have a lot of patients that for one reason or another fall into the obese category and sometimes the wrist cuff won't fit right{of course with some the arm cuff won't fit either!} that being said if you want the best accuracy go with the manual cuff and stethoscope its not the fastest method but unless you having hearing issues it will give you the best readings. I hope I've been able to help you with this.
1949176
As long as it reads 300 to 400 outside it gives me confidence that it is fairly accurate. And it Alway has stayed in that margin outside. In a dark room you can see the infa red pulse every few seconds and seam to adjust corispodingly. Hope that helps.
1497035
It doesn't require a stethoscope. If you don't know your bp, inflate to 170 mmHg. It'll go down from there automatically. It takes 2-3 times of doing this to get a good reading. The circumference of the cuff is 9-13 inches (from manual).
1841319
The owners manual says it is accurate to 100' or appx. 30.5 meters. I personally have not used it for measuring that great of a distance but I can tell you it is a great tool for the price. I often work inside building with poor lighting conditions and the back lit display is great. The accuracy seems to be spot on. One of the best time saving tools I have ever purchased. I wouldn't know what to do without it!
1403874
No. My doctor said the report was unusable because it produces a fuzzy range rather than specific readings that would allow him to see how consistent the oxygen levels were. Just get the equipment from your doctor.
1603702
I am not a physician but 78-80 would "normal" at rest for an adult; lower if you're highly trained. I would just count it manually and compare. Mine is accurate as far as I can tell.
891536
I have an older monitor upstairs that's not portable.....plug in type & side by side, they both give the same readings. So I take it that either both are wrong....or....both are correct. The readings fall in line with the governments upper normal values for my area. Hope this helps. Sorry I couldn't give you a better answer.
1687811
It depends on the placement of the device. It has a pretty good range - I ised it so that the nurse could be alerted
1203770
Depending on the distance, it will be less accurate the farther away you get. It should give a decent approximation at that distance.
1657993
You don't have to be too far away. It's a great little lamp. I got it for a bedroom for the grandchildren for sleepovers. I placed it on the night stand next to the bed. Also would be great if you should loose electricity.
2186980
GPS itself isn't guaranteed to be more accurate than 7.8 meters worse case for consumer use. 7.8 meters is getting close to 25 feet.
1539906
About 4-5 inches of room from the back of the monitor to be safe. Maybe a little less. There is a built in stand though, with an attachable circle bottom for the stand to go into.