Flashcards in L 68 Ectoparasites Deck (22):
Ticks are second to _____ in transmitting disease to humans
Ticks are ______ feeders
Ticks are slow feeders and do not transmit disease quickly
What is the scutum and hypostome on the tick?
Scutum is the shield-like back
Hypostome is just above move, used for attachment
How to remove a tick
Grasp the tick with forceps near the head and gentle pull
Don't squeeze the body!
Tick disease prevention
Wear long sleeves and pants
Check often for ticks and use deet
What are the ticks that cause Lyme Disease?
Which ticks cause babesiosis?
Which ticks can cause paralysis?
Which ticks cause Rocky Mountain Spotted Fever?
Which tick is the Lone Star Tick?
What is tick toxicosis?
Usually after days of tick feeding
Female saliva causes sonduction block
Fatalities from respiratory paralysis possible
Removing tick leads to resolution within hours
Type of mite
Straw and grain itch
May provoke allergic response
Causes Demodex dermatitis
Looks like acne
Involves follicle, is pruritic
Remember the vermiform shape of the mite
Mite causing chigger dermatitis
Larval mite with long hypostome like a sword
Usually attacks animals–red lesions on animals
In humans produces pruritis but does not burrow
Mite is gone, but leaves hypostome in skin causing itch
Just treat the itch
A burrowing mite–female only, lays eggs
Causes pruritic eruptions
Can be an STD
Dog version short lived
Human type from crowded conditions
Crusted lesions teeming with mites
Head, neck, buttock, perianal
Assoc with HIV
Apply mineral oil to skin, scrape lesion and visualize microscopically
Whole or mite parts visualized
Pruritis might continue
Lice species on head, body, pubic
Pediculus: head and body
Are lice a big deal?
Phthirus pubis or pubic lice
Nits (eggs) cemented to hair follicles, adults feed in pubic area
Transmitted by sexual contact