When analyzing an ABG sample from a patient with acute respiratory distress syndrome and re-fractory hypoxemia, you notice a PaO2 of 141 mm Hg and a PaCO2 of 14 mm Hg. Which of the following analytic errors should you suspect?
a. Excessive time since sample collection
b. Exposure of the blood sample to air
c. Excessive heparin in the sample
d. Sample admixture with venous blood
ANS: B
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Which of the following accurately describes what happens to the intervertebral foramen during extension?
a. Intervertebral foramen becomes smaller. b. Intervertebral foramen remains the same size. c. Intervertebral foramen becomes larger. d. Intervertebral foramen becomes square in shape.
Which of the following rinses is classified as quaternary ammonium compound?
A) Scope B) Listerine C) Plax D) Periogard E) Peridex
Which of the following does not help to ensure patient confidentiality in relation to electronic health records?
A list of all authorized users Passwords and personal identification numbers Data encryption Data exchange failures
Who is a candidate for radial keratotomy?
a. Farsighted individuals b. Blind individuals c. Nearsighted individuals d. Individuals with cataracts