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Motion Sickness
- -"avalanche affect" - minor symptoms --> vomit
- -many predisposing factors (women, chinese, young demographically)
- -prodrome: innattention, drowsiness
- -early symp: nausea and epigastric discomfort
- -later symp: yawning, salivation, light-headedness, malaise
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Differential Diagnosis
- if history doesn't add up:
- -labrynthitis
- -gastroenteritis
- -metabolic disorders (diabetes, DKA)
- -altitude sickness
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Treatment of Motion Sickness
- most effective: scopolamine patch -- antimuscarinic agent/anticholinergic agent
- other: dramamine
concerns: "mind eraser" effects at high dose make them date rape drugs
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Lesser Treatments of Motion Sickness
- Phenergan
- accupressure
- ginger
- focus on horizon
- important: zofran does not work*
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Reason behind vomiting in motion sickness
- Three ways to detect motion: vestibular, visual, proprioception/somatosensory input.
- -if one of these inputs is off, the body thinks it's hallucinating because of a toxin, and so you throw up
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Roles and Responsibilities of Navy Doc
- common illnesses and injuries
- occupational/ preventional med
- acute emergencies
- telemedicine
- admin
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Illnesses
- hypertension, high cholesterol
- derm stuff
- STDS
- minor ortho
- unique illness to your crew
- fingertip amputations from doors
- toxic stuff in ships
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Operational/Prev med
- hearing conservation (loud ships)
- vision
- vaccinations
- food/water inspections
- STD prevention
- port call safety
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