In theory, a nasal cannula can deliver what amount of FIO2 to a patient?
a. 0.24 to 0.60 c. 0.24 to 1.00
b. 0.24 to 0.36 d. 0.24 to 0.44
ANS: D
The FIO2 levels delivered by a nasal cannula vary with the flow rate setting. Generally, the FIO2 increases by about 4% for each liter of flow increase beginning with 1 L/min delivering approxi-mately 24% oxygen.
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You are ventilating a patient when she vomits a large amount of undigested food. You should:
A) use a flexible suction catheter to remove the material as you continue to ventilate. B) turn the patient onto her side, manually remove as much material as possible from the airway, and suction the rest with a rigid suction catheter before resuming ventilations. C) suction using a rigid suction catheter for as long as it takes to remove the material, applying suction both while inserting and withdrawing the catheter. D) suction using a rigid suction catheter for no more than 15 seconds before resuming ventilations.
The recommended vertical angulation for exposing a mandibular incisor periapical radiograph
using the bisecting technique is: a. -10 degrees b. -15 degrees c. -20 degrees d. -5 degrees
Epistaxis is more commonly known as an acute:
a. allergic reaction b. ear infection c. nose bleed d. upper respiratory inflammation
Using the CPT manual, select the appropriate code for the following procedure
An excision of urethral caruncle