Surgery board review

quickster2008's version from 2016-11-12 04:38

Section 1

Question Answer
ASA classification for Anesthesia
first sign of malignant hyperthermiaTachycardia
malignant hyperthermia txSodium Dantrolen 2.5 mg/kg
Suspect malignant hyperthermia in pts with Familial hx of MH Muscular dystrophy Pts on halothane and succynylcholine
What is trismusmasseter muscle spasm
Thyromental distancethyroid motch to mental protuberance of the mandible should be larger than 6.5cm
halothane SEhepatitis
local anesthetic MOAStabilizes the axonal membrane
Epinephrine should be avoided in pts takingshould be avoided in pts using Halothane, since halothane sensitizes the myocardium in the presence of exogenously administered catecholamine
muscle relaxants (Depolarizing agents) broken down byplasma pseudocholinesterases,
What is the MOA of death by narcoticrespiratory depression
What anesthetic can be safely used in cardiac and asthmatic patientsetomidate
Benzodiazepines antidoteFlumazenil 0.2mg/kg
Fentanyl antidoteNaloxone 0.4-2.0mgq2-3min
Scar tissue is only ? percent as strong as original tissue80
macrophages are the most important inflammatory cells involved in wound healing because they are the only cellsable to tolerate the low oxygen levels at the wound edge
when can you remove suturesThe wound reaches 35% of it’s original strength by day 14- at this time the tensile strength of the wound=tensile strength of the suture that can now be removed
Metoclopramide usepost op nausea
Scopolaminepost op nausea
Cimetidine post op nausea
Ranatidinepost op nausea
Droperidol post op nausea
how to prevent Pulmonary AspirationsNPO 6 hrs
sensitizes the myocardium to the action of catecholamineshalothane
bronchodilator! may be safely used in asthmaticshalothane
Most potent inhalation agenthalothane
lowest MAC inhalation agenthalothane
which is true of halothane a. non-smelling b. non-irritating c. non-emetic d. non-flammablea. pleasant smell
MAC stands forminimum alveolar concentration
will a more potent agent have a higher or lower MAC valuelower(the lower the value, the more potent the agent)
least potent inhalation agentNO(thus very high MAC level)
arrhythmia-producing drug,halothane
Myocardial depression -producing drughalothane
postoperative shivering decreases HRhalothane
in a pt with Ischemic heart disease how long should you wait before elective surgery6 months
amnesiaDiazepam, Midazolam
nonunion txElectrical bone growth stimulation
how does Electrical bone growth stimulation workcreates an electronegative polarity in the collagen- promotes bone growth
bone graft functions as a scaffold or conduit for migration of new bone as it replaces necrotic old boneOsteoconduction
BMP acts as an inducer substance.Osteoinduction
ABDM Myocutaneous flapsfibula
FDB Myocutaneous flapsposterior and plantar heel
Hyperkalemia EKG changesSpiked T waves, ST segment depression, Prolonged PR intervals, QRS widening, prolonged QT intervals
Pressure setting ankle:100+SBP
Pressure setting thigh275-350mmhg+SBP max 500mmhg
Transverse ridges on nailBeau’s Lines
 Mee’s Lines Horizontal striations on nail d/t arsenic & thallium poisoningMee's lines
White striations on nails associated with what dz?Leukonychia
melanotic whitlow elevation of nail Malignant Melanoma

Section 2

Question Answer
Haglund’s Deformity etiologyCompensated RF varus,

Section 3

Question Answer
intrinsic Muscles - (med to lat in transverse plane) Abductor hallucis, Adductor hallucis, 1st dorsal interossei, 2nd dorsal interossei, 1st plantar interossei, 3rd dorsal interossei, 2nd plantar interossei, 4th dorsal interossei, 3rd plantar interossei, abductor digiti minimi
Flexor Stabilization etiologyFlexors> interossei
Extensor Substitution etiologyExtensors>lumbricales
Gastrocnemius equinus mc cause Abnormal STJ pronation & hypermobile flat feet mc cause → Flexor stabilization mc cause → Hammer toe
Sequential Hammer toe ReleaseExtensor Tendon & hood release→(Kelekian push-up test) PIPJ arthroplasty →(Kelekian push-up test) MPJ capsular release (med, lat & dorsal) →(Kelekian push-up test) Plantar Plate release w/ maglammery elevator,→ (Kelekian push-up test) PIPJ arthrodesis fixated w/ 0.045 K-wire for 6-8 wks.

Section 4

Question Answer
HAV biomechanicsabnormal pronation in adducted foot during propulsive phase of gait
structural HAVPASA or DASA Abnormal PASA + DASA = HAA
Positional HAVPASA & DASA Normal  PASA + DASA < HAA
Combinded HAVPASA OR DASA Abnormal PASA + DASA > HAA