Shared Flashcard Set

Details

ENTO 457 FINAL
FINAL
53
Medical
Undergraduate 4
05/12/2014

Additional Medical Flashcards

 


 

Cards

Term
What problems can mites cause?
Definition
temporary skin irritation
persistent dermatitis
allergic reaction
pathogen transmission
intermediate host of tapeworms etc
Term
What are the 7 developmental stages mites go through?
Definition
egg, prelarvae, larvae, protonymph, deutonymph, tritonymph, and adult.
Term
Which two families of mites use humans as their normal host?
Definition
Demodicidae and Sarcoptidae
Term
What treats mites?
Definition
Amitraz and Ivermectin
Term
Names of mites in other animals?
Definition
D. Cati - cats
D. Bovis - Cattle
D. Caprae - goats
Term
What is the disease caused by mites?
Definition
Scabies
Term
How do you treat scabies?
Definition
creams and lotions containing acaricide usually permethrin also oral medications.
Term
What can problems can storage mite cause in humans?
Definition
Allergic reactions in the respiratory tract lead to asthma and allergic rhinitis
Term
What are the 5 distinct stages in the life cycle of house dust mites?
Definition
egg, larva, protonymph, tritonymph, and adult
Term
What is the worlds most dangerous scorpion?
Definition
Yellow scorpion - Leiurus quinquestriatus
Term
What are the 2 parts of a spider?
Definition
Front called cephalothorax
Hind called abdomen
Term
What is the difference between venom in spiders?
Definition
Neurotoxic is in web dwellers
Cytotoxic is in non-web dwellers
Term
What are some problems that funnel-web spiders cause?
Definition
Death within a few minutes for infants and 1 day for adults, frothing at the mouth, dyspynea, sweating, etc.
Term
How can horses die from blister beetles?
Definition
through ingesting blister beetles trapped in baled alfalfa hay.
Term
What do tapeworms use as their intermediate hosts?
Definition
Beetles
Term
What can cockroaches serve as an intermediate host for?
Definition
hookworms, giant human roundworm, pinworms, tapeworms, whipworms
Term
How do you prevent cockroach entry?
Definition
Sanitation
Eliminate water
Eliminate Harborage
Term
Why is it biologically relevant for us to be aware of stinging insects?
Definition
stinging insects can harm us, even kill us, and that is relevant.
Term
Why would stinging insects want to hurt us?
Definition
They view us as predators
Term
Causes of death from stinging insects?
Definition
toxic envenomation and allergy
Term
What does the Lethal Capacity mean?
Definition
capacity of an insect venom is a measure of the maximum killing power by that insect.
Term
Which insects leave their stinger in the skin?
Definition
honey bees and harvester ants
Term
What is forensic entomology?
Definition
Dealing with the application of scientific knowledge to legal problems and proceedings.
Term
What are the 3 intrinsic timers of death?
Definition
Algor Mortis - temp
Rigor Mortis - muscle stifness
Livor Mortis - Pooling of Blood
Term
What are the 4 stages of decomposition?
Definition
1. Fresh stage - 0-3 days
2. Bloated stage - gases produce inflation of abdomen 4-10 days
3. Active decay stage - maggot feeding masses 10-50 days
4. Dry stage - dry skin, cartilage, bones 50-365 days
Term
What is vacation syndrome?
Definition
when cocoons remain dormant over years if they are not stimulated to hatch, and when people and pets return home which can lead to a massive wave of flea emergence
Term
What is the endemic in Nigeria, Trinidad, and Tobago?
Definition
Tungiasis
Term
How do you treat tungiasis?
Definition
physical removal of the flea by use of foreceps or needles, application of topical anti-parasitic medicine, and surgery to remove nodules.
Term
What are the five reasons the plague was likely to be viral and not actually the bubonic plague?
Definition
1. very different transmission speeds
2. difficult to explain spreading
3. different seasonality
4. different death rates
5. cycles and trends different
Term
What is the major flea-borne disease?
Definition
Plague and typhus
Term
What are the 3 forms of plague?
Definition
Bubonic - lymph
Septicemia - blood
Pneumonic - lungs (most contagious airborne)
Term
How to treat plague and typhus?
Definition
Isolate and more recent doxycycline
Term
How do you control the plague?
Definition
environmental sanitation
educating the public
preventative antibiotic therapy
Term
What are the symptoms of typhus?
Definition
Headache, backache, high fever, rash, nausea, vomiting, dry cough, abdominal pain
Term
How do you prevent fleas?
Definition
Pill program - prevents flea from hatching when done once a month at mealtime
Egg-Stopper Collars - insect growth regulating ingredient
Spot-ons - droplets of material between
Term
How can bedbugs be found?
Definition
black stains on bed from feces visible blood stains if dead
Term
What medical importance do bedbugs have?
Definition
vector for hepatitis B and trypanosomiasis
Term
What can kill bed bugs?
Definition
Fumigation of furniture, clothing or other personal items
Term
What veterinary importance do bed bugs play?
Definition
pest of poultry, with heavy infestations birds can become stressed and suffer from anemia and young birds may be killed due to blood loss
Term
What are the important routes of transmission for Chagas disease?
Definition
transfusion with infected blood and congenitally,
Term
What are the phases and symptoms of Chagas?
Definition
1. Incubation period
2. Acute Phase
3. Asymptomatic phase
4.Chronic stage
Term
What are the phases of diagnosis of Chagas?
Definition
1. Acute phase
2. Indeterminate and chronic phase
Term
How is chagas treated?
Definition
two drugs: Nifurtimox and Benznidazole
Control Vector, screening blood banks, drug treatment in acute phase
Term
What are the challenges for new drugs for Chagas?
Definition
lack of funding, clinical trials, techniques for monitoring and treatment, measuring drug effectiveness
Term
How to evaluate ecological risks?
Definition
how microorganism transformed to include characteristics of donor, stability of new genotype, impact on ecosystems, safety of GM organisms in field trials, impact on disease transmission
Term
Why are there no cases of human Chagas disease in az?
Definition
lack of suitable dwellings, low numbers of insects in houses, misdiagnosis of infection, delayed defecation times
Term
What are the 3 life stages of ticks?
Definition
larvae, nymphal stage, adult
Term
What are the three types of ticks?
Definition
one host, two host, and three host ticks
Term
How do ticks find their hosts?
Definition
questing - crawling up stems with the front legs extended when a host passes by.
Term
Why are ticks great disease vectors?
Definition
multiple hosts, long duration of feeding, large bloodmeal, longevity, survival
Term
What are some tick borne diseases?
Definition
Lyme disease - most common in US from deer tick
Rocky Mountain Spotted Fever and human babesiosis
Term
How do you treat Lyme disease?
Definition
antibiotics - doxycycline.
Term
How to prevent Lyme disease?
Definition
avoid areas with ticks, keep off of skin, check for ticks everyday in infested areas.
Supporting users have an ad free experience!