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Flashcards in Anesthesia Deck (50)
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31

Most common cause underlying condition in thyroid storm

recently diagnosed/undiagnosed Grave's disease with trauma/surgical stress

32

s/s thyroid storm

HTN, Tachy, MI, dysrhythmias, Hyperthermia

33

Main difference in s/s between thyroid storm and MH

MH also has acidosis

34

Emergent tx of thyroid storm

Propranolol

35

What medications can be given 6-8 weeks prior to elective surgery in patient with recently diagnosed Grave's Disease

Propylthiouracil Prevents conversion of T4 to T3, inhibits thyroid hormone stimulation

36

How many mins reserve O2 does obese person have?

2mins

37

What common maneuver worsens air trapping in bronchospasm?

PEEP It can cause lung hyperinflation.

38

Pathophysiology of MH

Calcium dump from sarcoplasmic reticulum in skeletal muscle

39

Early signs of MH

Hypercarbia Tachy Tetany

40

Late signs of MH

Hyperkalemia with ECG changes Rhabdo Hyperthermia

41

Most common causes of death in MH

Hypercoagulation 2/2 hyperthermia Hyperkalemia

42

Loading dose of dantrolene for MH

2.5mg/kg

43

s/s myasthenic crisis vs cholinergic crisis

SAME signs/symptoms Weakness, bronchospasm, diaphoresis, cyanosis

44

Myasthenic crisis vs cholinergic crisis

Myasthenic crisis = insufficient medication Cholinergic crisis = excess medication

45

Most common myasthenia gravis medication and its duration of effect

Pyridostigmine = Anti-Acetylcholinesterase 3-6 hour duration

46

Which volatile agents are potent bronchodilators

Isoflurane Enflurane

47

Which paralytics cause histamine release and are contraindicated in asthmatic

Atracurium Mivacurium

48

Classification of cerebral palsy

Spastic (motor cortex, 75% of CP patients) Dyskinetic (basal ganglia) Ataxic (cerebellum)

49

Periop management of CP

Volatile induction (IV access hard with contractures) Aspiration precautions (decreased tone + hypersalivation) Avoid Succinylcholine Increase MAC and non-depolorizing dose Lowered seizure threshold Chronic hypovolemia with pre-renal kidney injury/failure

50

What LA agents can cause methemoglobinemia at high doses?

Prilocaine