Comprehen
sive
Questions
with
Verified
Answers
Graded A+
1. sniffing position
Answer: neck flexion head
extension
torso supine
2. absolute contraindications to LMA
Answer: full stomach pharyngeal pathology (e.g.
obstruction, hx of radiation to neck) glottic surgery
low pulmonary compliance (will require high peak pressures > 30)
3. relative contraindication to LMA
Answer: very long cases prone positioning
T-berg positioning
4. head movement and ETT movement Answer: flex - tube will go
down towards carina extend - up
5. Predictors of difficult intubation Answer: L ook externally (facial trauma, beard,
large tongue, etc) E valuate 3-3-2 (mouth opening, hyoid-mental distance, thyroid-to-
mouth)
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, M allampati (>3)
O bstruction / O besity
N eck mobility (decreased)
6. difficult airway management
if fail intubation attempts, what are next steps? Answer: considerurn to
Answer: call for help, ret ventilation, wake up patient spontaneous
make sure to be able to ventilate
7. osmolality of IV fluids (least to greatest) Answer: LR (273) <
Plasmalyte (295) < NS (305) (body osm is 290)
8. composition of LR
Answer: 130 mEq Na 109
mEq Cl
4 mEq K
2.7 mEq Ca
28 mEq lactate
9. what metabolic derangement to be cautious of with normal
saline infusion (especially with large volume administration)? Answer:
hyperchloremic metabolic acidosis
10. preop indications for dialysis Answer: hyperkalemia
and volume overload (<5.5 for elective surgery)
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