Which of the following will result in falsely low HbO2 readings with a pulse oximeter?
a. Presence of HbCO
b. Vascular dyes
c. Dark skin pigmentation
d. Presence of fetal hemoglobin
ANS: B
Table 19-6 outlines some of the potential problems and resulting errors that can occur with hemoximetry.
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With what type of codes are procedures/services identified by a five-digit CPT code and descriptor nomenclature (these are codes traditionally associated with the CPT and organized within six sections)?
a. Category I codes b. Category II codes c. Category I and II codes d. Category III codes
A pediatric patient is being treated for respiratory distress syndrome (RDS). What happens to functional residual capacity (FRC) if the compliance of the lung decreases in this patient?
A) FRC is not affected by lung compliance. B) FRC decreases. C) FRC increases. D) FRC stays the same.