Exam 5 - Insect Bites, Stings, and Pediculosis

Question 1

Vector

Answer 1

An organism (like an insect) that transmits a pathogen from one organism/source to another

Question 2

Pandemic

Answer 2

Spreads across many countries and affects many populations

Question 2

Epidemic

Answer 2

Spread rapidly among a community or region within a short period of time

Question 3

Interdigital

Answer 3

Occurs between the fingers and toes

Question 3

Edema

Answer 3

Abnormal accumulation of fluid

Question 4

Purulent

Answer 4

Containing, discharging, or causing the production of pus

Question 4

Analgesic

Answer 4

Medication that reduces/eliminates pain

Question 5

Bites from insects (bedbugs, fleas, mosquitos) and arachnids (ticks and chiggers) are ____

Answer 5

Non-venomous

(NOT spiders)

Question 5

Angioedema

Answer 5

Edema that is focused on the inner layer of your skin (dermis)

Can be thought of as an allergic reaction (like w/ swelling of the eyes/lips/tongue)

Question 6

Photosensitivity

Answer 6

Sensitivity to UV rays from sunlight or other light sources

Question 7

Common causes of insect bites

Answer 7

Lice
Spiders
Chiggers
Bedbugs
Ticks
Mites

(Let Some Cunt Bitch Try Me)

Question 8

Reactions to insect bites

Answer 8

Typically only local reactions

Can produce severe/life threatening reactions in sensitive patients

Question 9

What contributes to the characteristics of each type of bite?

Answer 9

Unique biting organs of the insect

Question 10

All spiders are _____, BUT…

Answer 10

Venomous

Many have fangs that are too small/fragile

Question 11

What happens when a mosquito bites a person?

Answer 11

They inject anti-coagulant saliva

This causes the itching and the welt

Question 11

Where are mosquitos found?

Answer 11

Worldwide

Particularly in humid, wet climates

Question 12

What diseases can mosquitos spread?

Answer 12

Malaria
West Nile
Zika

Question 13

How do flea bites present on humans?

Answer 13

Bites are usually multiple and grouped

Occur primarily on legs and ankles

Lesion is an erythematous region around the puncture w/ intense itching

Question 14

Where are bedbugs found?

Answer 14

Worldwide

Hotels and planes

Question 15

Where do bedbugs hide and deposit eggs?

Answer 15

In the crevices of:
- walls
- floors
- bedding
- linen folds
- furniture

Question 16

Where and when are people bitten by bedbugs?

Answer 16

At night along exposed skin

Mainly: head, neck, arms, back

Question 17

How to bedbug bites present?

Answer 17

Clusters of 2s and 3s
Typically in a straight line

Reactions can range from irritation to small dermal hemorrhage

Most report intense itching

Question 17

What issue is being seen with extermination of bedbugs?

Answer 17

They have developed resistance to common pesticides containing pyrethroids

Still sensitive to heat

Question 18

How do scabies infect the skin?

Answer 18

Mite burrows into the stratum corneum

Females burrow tunnels into the skin and lay egges

Question 18

How are scabies spread?

Answer 18

Contagious via skin to skin contact

Question 19

What causes scabies?

Answer 19

Sarcoptes scabiei

Question 20

Common infestation sites of scabies?

Answer 20

Between the fingers
Anterior axillary folds

Buttocks
Male genitalia
Wrists (flexor surfaces)

(Bought A BMW)

Question 21

How are scabies characterized?

Answer 21

Inflammation
Intense itching

Question 22

How do tick bites occur?

Answer 22

Feed on blood of animals/people by sticking their mouth into the skin

Question 22

Scabies treatment

Answer 22

Prescription medication

Question 23

What happens if the head/mouth of a tick is left in the skin? What if the tick is left attached?

Answer 23

If left in skin: intense itching and nodules

If left attached: tick becomes engorged and can stay for 10 days before dropping off

Question 25

Local reactions of tick bites

Answer 25

Itchy papules