Travel Med Flashcards
2500 m = _____ ft
8000
Acute Mtn Sickness- alttude
2500 m (8000 ft)
Aedes vector for 5 virus CRuDZY
DEN, CHIK, YF, RVF, Zika
After dive, avoid flying for:
>12 h after no-compression dive >18 h after repetitive or after decompression diving >24 h after altitude diving
after drop effect
Core temp drop if blood flow to extremities first -> repurfusion acidosis
airline and cruise EGA restrictions
32-36 air, 28 boat
altitude and pregnancy (2)
try to sleep below 3600 m NO acetazolamide
Anopheles vector for
malaria, ONY
Arterial gas embolism- cause, timing
lung barotrauma causing CVA and MI with 10 min of surfacing; cause 3% dive deaths
Bartonella- 3 types, vectors, disease
B. bacilloformis – sand fly- bartonellosis B. henselae- flea- cat scratch, bacillary angiomatosis, endocarditis B. quintana- louse- trench fever, endocarditis, bacillary angiomatosis
BCG side effects
ulcer or abscess weeks later
Bismuth reduces travelers diarrhea by
55% take QID
black fly vector for (3)
onchocerciasis, M. Ozzardi, dirofilariasis
Cholera vaccine- indication
epidemics 2 doses 1-6 weeks apart (depending on type age down to 1 or 2)
Chrysops deerfly vector for (2)
Loa, Francisella tularensis
Ciguatera poisoning- agent, source, sx (2), Tx
Gambierdiscus toxicus (a flagellate) heat resistant
gastroenteritis/vomit 1-6 hours; paresthesias, pruritis and myalgia may persist months
hot/cold reversal
warm-water reef fish, oysters, clams
supportive Tx
Contraindication to DTaP
Encephalopathy within 1 week of previous DTaP/DTP
Contraindication to Hep A
Anaphylactic reaction to 2-pheooxyethanol or alum
Contraindication to IPV
Anaphylactic reaction to neomycin, streptomycin or polymyxin B
contraindications to MMR
reaction to prior MMR, Immunosuppression, Thrombocytopenia, Gelatin or neomycin allergy, Pregnancy
Contraindications to nasal flu (4)
< 2 YO, egg allergy, lung disease, pregnant
Culex vector for
LF, JE, WNV, VEE, WEE, EEE
DDx subconjunctival hemorrhage (4)
Leptospirosis, scrub typhus, hantavirus renal, dengue, measles
decompression illness
Inadequate elimination of nitrogen from tissues during ascent, causing muscle aches and pains
Decompression sickness
nitrogen bubbles forming in tissues on resurfacing- cause 2% dive deaths
DEET can also inhibit (2)
schisto, tick (typhus)
elderly less likely to get (3)
motion sickness, diarrrea, AMS
Flea is vector for (6)
Bacteria: B. henslae, R. felis, R. typhi, Y. pestis Parasite: Dipylidium caninum, tungiasis
frequency of post-infectious IBS
25%
frostbite- def, Tx, good prognosis
ice crystals in tissue rapid rewarm, avoid refreeze early clear blebs and edema
Glossina Tsetse fly vector for
Trypansomsoma brucei
Hajj- attendees, illnesses (lung, blood, nasal)
3 million from > 180 countries 75% get Hajj cough- environmental, TB, flu, pneumonia, MERS HIV and hepatitis from shaving by barbers PAM- nasal abolution
health contraindications to fight
10 days after chest or abdominal surgery 14 days from MI or CABG Uncontrolled CHF, Sz, HTN, DM, psych
health precautions to flying (4)
Anemia Cerebrovascular disease SS Pulmonary- dry cabin air
heat exhaustion vs heat stroke
weak, confusion vs collapse, uncontrolled fever, organ damage
Hep A vaccine use in endemic?
No. Kids usually mild and Asx.
Hepatitis B vaccine contraindications (2)
previous allergy, yeast allergy
High altitude cerebral edema (HACE)- Sx, Tx
Sx: ataxia, confusion Tx: immediate descent. Dexamethasone may buy time
High altitude contraindications
Uncontrolled CHF, pulm HTN, SS, mod-severe COPD (not asthma); Hx HAPE, HACE
High Altitude Pulmonary Edema (HAPE)- fame, Tx
most common cause of altitude death descent, O2, EPAP, nifedipine (steroid NO help)
high eosinophlilia related to
trichinosis, visceral larva migrans, microfilaria, onchocerciasis, ascariasis, hookworm, schistosomiasis, or liver or lung flukes
HIV malaria prophylaxis interaction
mefloquine and ART
how effective is 1st dose of measles
97%
how long for meningitis, YF and polio to be effective
10 d, 10 d, 4 wks
how long until YF vaccine effective
10 d
how often are diarrhea studies positive- what percentages
1/3 pos 70% bacterial, 15% viral
HPV strains related to CA, related to warts, in vaccine
16, 18, 31. 33 6, 11 (6, 11,) 16. 18
Huntington’s response
cold induced vasodilation in intermittent 5-10 min cycle at 10 degrees C