DMCC Flashcards
Define disaster
A disruption of normal life and activities that requires the affected community to make extraordinary efforts to cope with it and usually requires outside help
Types of natural disaster
Sudden or acute onset
Slow or chronic onset
Examples of man made disasters
Industrial
Transport accidents
Deforestation
Examples of complex humanitarian emergencies
Wars, civil strife
Define hazard
Damaging things that could occur
Define risk
The probability that an action or activity (including inaction) will lead to an undesirable outcome
What must a surveillance system be
Appropriate
Acceptable to those surveyed
Accurate
Timely
Defined
Compatible and collaborative
What must information be
Reliable
Relevant
Collected systematically
Standardised
Timely
Acceptable
Types of surveillance systems
Comprehensive
Sentinel
Clinical based
Laboratory based
What are the 11 priorities
- Initial assessment
- Measles immunisation
- WASH
- Food and nutrition
- Shelter and site planning
- Healthcare in the emergency phase
- Control of communicable diseases and epidemics
- Public health surveillance
- Human resource training
- Coordination
- Security
Daily caloric requirements
2100 kcal/ person/ day
Micronutrient requirements
Vitamin A, Zinc, Iron, Iodine
Describe kwashiorkor
Bloated appearance due to water accumulation (protein, antioxidant and micronutrient deficiency)
Describe Marasmus
Severe weight loss leaving “skin and bones” shortage of protein and calories
Complications of malnutrition
Mild growth retardation and weight loss
Later stages
-apathy
-lack of facial expression
-loss of appetite
Damage to the immune system
-more severe disease episodes
-more complications
-longer duration of illness
Main causes of death (in malnutrition)
Hypoglycaemia
Hypothermia
Infection
Dehydration
Malnutrition assessment
Weight for height (z scores)
Weight for age
Mid Upper Arm Circumference (MUAC)
Management of malnutrition in populations - types
Selective
Therapeutic
Community based
Other activities to help malnutrition
Breast feeding
Extra rations for pregnant and lactating women
Support other vulnerable groups
Treat infectious diseases
Measles vaccination
Vitamin A
Anthropod vectors
Mosquitos, sandflies, ticks, lice
Rodent vectors
Rats, mice, bats
Important vector borne diseases
Malaria, yellow fever, dengue, typhus, leishmaniasis, plague, viral haemorrhagic fevers
Vector control measures
Hygiene
Site selection and maintenance
Sanitation
Insecticides, Rodenticides and traps
Waste disposal
Control of breeding sites
Limiting access to buildings and food
Chemo prophylaxis for vector borne diseases
Anti malarials
How can you prevent yellow fever and Ebola
Vaccination
Describe bite avoidance strategies
Protective clothing
Bednets impregnated with insecticide
Insect repellant
Important oral route diseases
Cholera, typhoid, dysentery, Hep A and E, polio, Shigella, salmonella etc
Toxins in food and water
Botulism
Staph aureus
Bacillus cereus
Prevention and control of oral route diseases
Clean water and safe food
Insect control
Waste control
Personal hygiene (handwashing)
Treatment of oral route diseases
Rehydration (oral, IV)
Oral zinc supplements
Appropriate use of antibiotics and antimotility
Important airborne disease
Colds, flus, influenza, pneumonia
Measles, meningitis, diphtheria, TV
Important blood borne diseases
Hepatitis B, C, HIV
Prevention and control of blood borne
Vaccination (hep b)
PPE
PEP
Barrier contraception
Describe the cold chain
Dedication refrigerators and freezers
Daily recording of temperatures
Cold boxes, cool packs, insulating material
Vaccine storage - correct temperature, protect from light
Types of heat illness/ injury
Sunburn
Prickly heat
Heat stress/ exhaustion
Heat stroke
How to diagnose heat illness
Core temperature reading
Preventative measures for heat illness
Acclimatisation
Monitoring of water intake
Appropriate clothing
Salt intake
Types of cold injury
Frost nip
Frost bite
Immersion foot
Hypothermia
Preventative measures for cold injury
Appropriate clothing
Diet
Fluid intake
Fitness
Describe the difference in poisonous and venomous organisms
Poisonous creatures use toxins for passive defence
Venomous creatures use poisons for active attack
Describe Elapidae
Cobras, mambas, sea snakes
Tropical and subtropical (not Europe)
Mainly neurotoxic
Describe viperidae
Vipers, rattlesnakes
Neurotoxicity, haemotoxic and proteolytic
Americas, Africa, Eurasia
Describe colubridae
Sub Saharan Africa
Boomslangs
Haemotoxic
Initial signs and symptoms of bite (even if no bite or venom)
Agitation, shock
Envenomation: local symptoms and signs
Bite marks, pain, swelling, tissue damage
Systemic signs and symptoms of elapid bites
Neurological
Local signs and symptoms of evenomation
Bite marks
Pain
Swelling
Tissue damage
Systemic signs and symptoms of viper bites
Cardiovascular signs
Bleeding and clotting disorders
Tissue necrosis
Initial treatment of evenomation
Check person has been bitten
Reassure
Try to retard systemic absorption of venom
No food (especially no alcohol)
Do not apply tourniquet
Treat symptoms as they arise
Analgesia (not NSAIDs or aspirin)
Medical care facility
Try and identify snake
Describe antivenom treatment
Monovalent or polyvalent
Cannot undo damage already caused by venom
Immediate or delayed hypersensitivity reactions
Arthropod examples
Spiders
Scorpions
Centipedes
Bees
Wasps
Treatment of poisoning
Antivenoms
Hot water/ vinegar for jellyfish stings
Antihistamines
Adrenaline for allergic reactions
Preparation for dealing with bites
Consider what dangers nearby
Locate treatment centres
Local availability of antivenoms
Brief team members
Health education
Role of aeromed
Deliver grand and equipment
Removal casualties
Access specialist care
Evacuate aid workers
Limitations of aeromed
Expensive
Availability
Time to organise
Site access
Capacity
Working environment
Physiological changes
Pros and cons of helicopter
Easy access but limited range and capacity, hostile working environment
Pros and cons of fixed wing
Need a landing strip and logistic support but increased capacity and range
Clinical considerations of aeromed
Basic physiology of hypoxia and pressure changes
Military roles and capabilities of aeromed
Aeromed essential to military ops to reduce medical footprint, achieve expected standards of care.
Capable of resuscitation, evacuation to intensive care
Disadvantages of aeromed
Limited asset
Expensive
Who do you evacuate
May make triage more complex
May splinter families
Definition of triage
A system for sorting casualties, cascading down from the most urgent to the non urgent, in order to prioritise them for treatment (non treatment) or evacuation, and repeating this at each echelon of care
Aim of triage
Address medical resources towards those that have the best chance of survival
Principle of triage
Triage is a dynamic process that can be performed at various stages in a mass casualty situation
4 things triage should be
Simple
Rapid
Reproducible
Safe
T1 meaning
Immediate treatment: require emergency life saving tests and or surgery that is not time consuming and leads to a good chance of survival
T2 meaning
Delayed treatment: require major surgery or medical treatment but can wait after receiving sustaining treatment
T3 meaning
Minimal treatment. Relatively minor injuries and longer delay is not life threatening. Can effectively take care of themselves or be helped by untrained people
T4 meaning
Expectant treatment. Multiple injuries need time/ material consuming treatment. Given supportive treatment
How does seive work
Assess mobility
Assess ABC
How does sort work
For evacuation
Based on physiological parameters and each given 0-4 score
Items to consider when triaging
Tactical situation
Is there a plan
Numbers of casualties
Number of staff and quality
Resources
Timelines
Clinical findings
Salvage ability
Safety of staff
Access
Trimodal death distribution
First peak: seconds to minutes
Second peak: minutes to hours
Third peak: days to weeks
DCR aims to optimise outcome by
Maximising tissue oxygenation
Minimising blood loss
Advantages of prehospital fluids
Maintaining circulation and blood pressure
Important in head injuries and burns
Disadvantages of prehospital fluids
Not a blood replacement
Risk of clot disruption
Worsening haemorrhage