This opioid agonist is unusual among opioids because it has anticholinergic properties.
What is meperidine?
This terminal branch of the posterior cord innervates wrist extension.
What is the radial nerve?
New hypotension, rising CVP, clear lungs, tachycardia, and electrical alternans suggest this diagnosis.
What is cardiac tamponade?
Patient with severe asthma under GA develops high peak pressures. Ventilator strategy should prioritize lower RR and longer time for this phase of respiration.
What is expiration?
Following large-dose rocuronium in a patient with myasthenia gravis, recovery is likely prolonged because of altered sensitivity at this receptor.
What are nicotinic acetylcholine receptors (reduced functional receptors)?
Injury to this nerve causes pain in the anterolateral thighs and this is the name of the syndrome.
What is lateral femoral cutaneous nerve? What is Meralgia Parathesia?
HOCM patient becomes profoundly hypotensive and tachycardic after induction. Which common pressor may worsen physiology.
What is epinephrine or ephedrine?
Obese patient desaturates rapidly during apnea primarily because of reduction in this lung volume.
What is FRC?
The maximum safe dose of plain bupivacaine in a healthy adult patient is this many mg/kg.
What is 2mg/kg (up to 175mg total)
This nerve can be electrically stimulated to produce flexion of the toes.
What is the posterior tibial nerve?
A patient on chronic ACE inhibitor therapy is profoundly hypotensive after induction and poorly responsive to phenylephrine. This vasopressor may be especially useful.
What is vasopressin?
When comparing the equations for static and dynamic lung compliance, these are the two variables that differ.
What is peak and plateau pressures?
Cdyn = (Vt) / Ppeak - PEEP
Cstat = (Vt) / Pplat - PEEP
Bradycardia after succinylcholine is more common with repeat dosing because of stimulation at these receptors.
What are muscarinic cholinergic receptors?
Damage to this nerve can occur following IV placement in the antecubital fossa and can lead to inability to oppose thumb and pinky fingers.
What is the median nerve?
A patient with severe mitral stenosis develops atrial fibrillation with RVR. Loss of this physiologic factor is especially dangerous.
What is atrial kick/diastolic filling time?
This pressure-volume loop showing beaking at upper inflection with high pressures suggests this. 
What is alveolar overdistention/ excessive tidal volume or pressure?
Dexmedetomidine commonly causes initial hypertension followed by hypotension because of early stimulation of these peripheral receptors before central effect predominates.
What are peripheral alpha-2B receptors?
After interscalene block, inability to shrug the shoulder suggests spread affecting this cranial nerve.
What is spinal accessory nerve (CN XI)?
During pheochromocytoma resection, profound hypotension after tumor vein ligation occurs from sudden catecholamine withdrawal plus relative depletion of this intravascular variable.
What is intravascular volume/preload?
COPD patient becomes hypotensive with rising peak pressures. Expiratory flow does not return to zero before next breath. This is the most likely cause.
What is auto-PEEP (dynamic hyperinflation) causing impaired venous return?