Which of the following is a significant risk for perioperative pulmonary complications?
a. 25 pack-year smoking history
b. Asthma well controlled with medication
c. Community-acquired pneumonia 6 months ago
d. All are significant risks
Preoperative chest radiography may be indicated in which of the following clinical settings?
b. 10 pack-year history of smoking
c. American Society of Anesthesiologist (ASA) status 2
d. All preoperative patients
Which of the following is true of methods to prevent postoperative pulmonary complications?
a. A smoking-cessation duration of less than 6 months prior to surgery does not significantly alter complication rates.
b. Routine use of nasogastric tube suctioning postoperatively is associated with higher complication rates compared with selective use.
c. Postoperative intermittent positive-pressure breathing (IPPB) lowers complication rates to a greater degree than incentive spirometry.
d. Early ambulation is as effective for pulmonary embolism prevention as intermittent pneumatic compression stockings in those with risk factors for thromboembolic disease.
Which of the following preventive measures related to cardiac disease lowers perioperative morbidity and mortality rates?
a. Maintaining hemoglobin level above 10 g/dL in those with cardiac disease
b. Intraoperative use of monopolar energy rather than bipolar energy in those with pacemaker devices
c. Initiation of perioperative beta-blocker use for all with an elevated Revised Cardiac Risk Index (RCRI)
d. Preoperative antibiotic endocarditis prophylaxis for those with valvular heart disease undergoing genitourinary procedures
In women with classic iron deficiency anemia, which of the following values is elevated?
c. Mean corpuscular volume
d. Total iron binding capacity