4. Aldrete vs PADSS (Post anesthesia discharge scoring system)
Aldrete - Consciousness, BP, SPO2, Respiration, Activity (>9)
PADSS - N/V, pain, bleeding, activity, circulation, voiding? (>9)
7. Compazine or prochlorperazine is a dopamine blocker like metoclompramide
Phenergan or promethazine is a histamine blocker with dopamine antagonist effects
41. Even though neuraxial to high thoracic does not affect C3-5 of the phrenic nerve, it does affect expiratory effort. Thus, expect that tidal volume, RR, MV does not change. However, expiratory reserve volume, peak expiratory flow, and vital capacity are decreased.
45: Respiratory factors in pregnancy: lower FRC from uterus. Progesterone has opposite effects than opioids in terms of CO2 response and ventilatory drive so women breath deeper. Progesterone is also a bronchodilator so dead space increases by 45%.
46: Foot drop after partuition is often 2/2 lumbosacral stretching from lithotomy position. Injury of the lateral femoral cutaneous nerve results in meralgia paresthetica and presents with sensory deficits in the anterolateral thigh. Obturator injury means no adduction of leg and decreased sensation to medial side of leg.
54: Umbilical arterial blood goes from fetal->mother so it reflects fetal respiration. Average values
PaO2 20-30, PaCO2 50-55, pH 7.2-7.3, bicarb 22-25. pH below 7.0 and base deficit of 12 should be considered definitive evidence of intrapartum asphyxia.
fetal scalp blood pH of more than 7.25 is normal, <7.2 means emergent c-section.
55. Stable monomorphic regular VT can be treated with adenosine now!
67. Laryngoscopy w/ intubation requries higher MAC than surgical incision
Extubation criteria
RR <35
Vital capacity > 10ml/kg
NIF > -20
Tidal Volume > 5ml/kg
MV < 10L/,min
Thoracic compliance > 25ml/cmH20
Diaphragm is the most resistant to paralyzation, reason unclear.
Orbicularis oculi approximates pharyngeal muscle blockade
Distal extremities (adductor pollicis) /abd muscles recovered the slowest from blockade
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