When the tissue structure of the ankle joint is considered, the dramatic tissue differences between the muscles and bones of the ankle produce
a. high subject contrast.
b. low subject contrast.
c. high radiographic density.
d. low radiographic density.
a. high subject contrast.
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________, also known as "swayback," is a condition in which the abdomen and buttocks protrude due to an exaggerated lumbar curvature
a. Kyphosis b. Lordosis c. Cyphosis d. Mordosis
A patient is receiving mechanical ventilation with a fractional inspired oxygen (FIO2) of 0.85 and a positive end-expiratory pressure (PEEP) of 5 cm H2O
His arterial partial pressure of oxygen (PaO2) is 68 mm Hg, arterial oxygen saturation (SaO2) is 88%, and partial pressure of end-tidal carbon dioxide (PetCO2) is 32 mm Hg. Over the next few minutes his PEEP is titrated resulting in the following data: Time FIO2 PEEP (cm H2O) SpO2 (%) PetCO2 (mm Hg) 0600 0.85 5 88 30 0630 0.85 8 88 30 0650 0.85 10 90 32 0720 0.80 12 93 34 0740 0.80 15 90 25 At 0740 the single-breath carbon dioxide (SBCO2) curve shifted to the right. What action should the respiratory therapist take at this time? a. Increase the FIO2 to 0.90. b. Reduce the set tidal volume. c. Continue to increase the PEEP. d. Reduce the PEEP to 12 cm H2O.