When checking a patient attached to a servo-controlled heated-wire humidifier breathing circuit, you notice no visible condensate anywhere in the tubing
Based on this observation, you can conclude that the relative humidity of the delivered gas is which of the following?
a. Less than 25%
b. 25% to 90%
c. 90% to 100%
d. Less than 100%
ANS: D
If condensate cannot be seen, there is no way of knowing the level of relative humidity without direct measurement—it could be anywhere between 99% and 0%.
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The EMT is correctly assessing a child's apical pulse when he:
A) carefully feels over both carotid arteries for at least 30 seconds. B) uses a stethoscope to listen to and count the femoral pulse rate. C) feels both a carotid and brachial pulse for equality and rate. D) listens with a stethoscope to the child's left side of the chest.
Which of the following is due to an overproduction of parathyroid hormone resulting in muscle weakness, fatigue, and hypertension?
a. Hypothyroidism b. Hyperparathyroidism c. Hypoparathyroidism d. Hyperthyroidism