Christa Perkins
Pulse & Resp
Start counting at 0 seconds. Count 15 heartbeats and where the second hand is on the red numbers that's BPM. Count 5 respirations andโฆ
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- Published on Dec 20, 2018
- ยฉ 2018 Christa Perkins. All rights reserved.
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Comments (2)
Ed nurenberg
can't get enough of this handsome pure tech, that's completely functional. my thanks. ๐
