Which of the following does NOT increase the risk of male infertility?
A) Smoking
B) Zinc deficiency
C) Bicycling
D) Age 40+
D
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A hemodynamically unstable patient being ventilated in the volume-controlled continuous man-datory ventilation (VC-CMV) mode is triggering inspiration at a rate of 25 breaths/min and has the following arterial blood gas results:
pH 7.50, partial pressure of carbon dioxide (PaCO2) 30 mm Hg, partial pressure of oxygen (PaO2) 98 mm Hg, arterial oxygen saturation (SaO2) 100%, bicarbonate (HCO3?) 24 mEq/L. The respira-tory therapist should perform which of the following? a. Extubate and administer noninvasive posi-tive pressure ventilation (NIV). b. Change the mode to pressure-controlled continuous mandatory ventilation (PC-CMV). c. Change the mode to volume-controlled intermittent mandatory ventilation (VC-IMV). d. Sedate and paralyze the patient.
The parts of a syringe that must remain sterile are:
A) the inside of the barrel B) the syringe tip to which the needle is attached C) the section of the plunger that fits inside the barrel D) All of these answers are correct.
Which of the following components of the x-ray system converts electrical energy provided by the generator into an x-ray beam?
A) operating control console B) tube C) beam modifier D) housing
Adequate large intestine distention and mucosal covering has been obtained when
a. the mucosal folds are demonstrated. b. a thin coating of barium covers the mucosal surface. c. the barium pool is limited to half the intestinal diameter. d. the barium is pooled in the dependent surface.