When using a small-bore catheter with a one-way valve such as a Heimlich valve, how can you determine definitively that there is or is not a small air leak?
a. Connect to an underwater seal.
b. Increase the FiO2 and note clinical chang-es.
c. Listen for air movement.
d. Watch the valve to see if it moves.
ANS: A
It is difficult to determine whether a Heimlich valve has an ongoing leak unless it is placed to underwater seal. This procedure can be done in the emergency department by placing the Heim-lich valve into a cup of water or by placing it in-line with a water-seal chamber to see whether an air leak is continuing after lung expansion.
You might also like to view...
Force causes an injury away from the site of impact because
the force is transferred to other parts of the body. A. Twist ing B. Indirect C. Direct D. Transverse
Some needle adaptors attach to the syringe hub by use of a twist connection, called a ____, where the adaptor on the syringe is grooved and will mate with a flange on the needle hub.
A. link lock B. standard lock C. luer lock D. luer link
The congenital gain or loss of an entire chromosome in a developing fetus usually results in what type of clinical condition?
a. Sexual ambiguity b. Myeloid leukemia c. Mental retardation d. Usually incompatibility with life
As part of the team, the medical assistant may be required to check the emergency supplies and equipment on the ________.
Fill in the blank(s) with the appropriate word(s).