Each large block of five small squares represent how many seconds on ECG paper?
0.05 seconds
0.04 seconds
0.2 seconds
0.1 seconds
0.2 seconds
Rationale: The distance across each small square is 0.04 seconds. The distance across one large square block is 0.2 seconds (five times greater since one large block contains five small squares). The distance across five large squares is equal to 1 second.
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When positioning a patient in prone, placing the arms alongside the head may result in decreased circulation to the arms
a. True b. False
When a proven effective treatment or intervention already exists for a serious condition, what type of control must be used for ethical reasons?
a. a placebo control b. no intervention at all c. an active control d. the standard of care e. none of the above
214 × 87
What will be an ideal response?
Which of the following is a reason for performing capillary blood collection in the medical office?
A) ?Capillary blood is an ideal sample for many screening tests that require a very small amount of blood. B) Capillary blood is a large enough sample to conduct many technical screening tests. C) Capillary blood is too small of a sample for many screening tests that require a very small amount of blood. D) Capillary blood is too thick of a sample for many screening tests that require a very small amount of blood.