Question Set #6

Phenothiazines as preanesthetic agents:
1. antiemetic effects
2. antiarrhythmic effects
3. sedative effects
4. A & C
5. A, B & C
Hydroxyzine (Atarax,Vistaril) as a preanesthetic agent:
1. cholinomimetic properties
2. anxiolytic
3. bronchoconstriction
Anticholinergics are used as preanesthetics primarily to reduce vagal effects that occur during surgery
1. true
2. false
Post-anesthesia emergence symptoms more common:
1. atropine
2. scopolamine
3. glycopyrrolate (Robinul)
Greater CNS activity:
1. scopolamine
2. atropine
Relatively more effective in reducing secretions; less effective in preventing reflex bradycardia
1. scopolamine
2. atropine
Reduction of gastric fluid volume.: important to decrease risk of aspiration pneumonitis
1. true
2. false
Patients at high risk for aspiration pneumonitis include those
1. patients in acute pain requiring emergency surgery with "full stomach"
2. patients with hiatus hernia
3. patients with esophageal reflux
4. A & C
5. A, B & C
Adults: relatively high-risk of pulmonary complications if aspiration volume (aspiration gastric contents):
1. volume > 5 ml & pH > 6.5
2. volume > 25 ml & pH < 2.5
3. both
4. neither
Metoclopramide (Reglan):
1. dopamine antagonist
2. causes pylorus constriction
3. causes duodenal constriction
4. increases gastroesophageal sphincter tone
5. B & C
Metoclopramide (Reglan)
1. stimulates upper gastrointestinal motility
2. may be administered orally or parenterally
3. increases the rated gastric emptying
4. does not guarantee complete gastric emptying
5. all of the above
Metoclopramide (Reglan) --
1. reduced efficacy if used following sodium citrate administration
2. increased efficacy in reducing aspiration pneumonia risk if combined with ranitidine (Zantac) before elective surgery
3. both
4. neither