Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

VetMed Year 4- Term 2 > Dermatolog > Flashcards

Dermatolog Flashcards

1
Q

Treatment of neotrombicula autmalis

A

Harvest mites can be asymptomatic to severely pruritic,

If asymptomatic don’t treat but NO LICENCED treatment. Fipronil off licence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Harvest mite hypersensitive horse.. Which location?

A

Horse eating grass therefore facial pruitis when hypersensitive to harvest mites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Cheyletiellosis clinical signs

A 
Scaling 'walking dandruff'
Pruitis
Primarily dorsal trunk
In Dogs/Cats/Rabbits
ZOONOSIS
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Treatment of Cheyletiellosis

A

Non licenced by selecmectin for 4 weeks!!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which dog is especially predisposed to demodicosis

A

Probably inherited predisposition- should not breed from them
STAFFORDSHIRE BULL TERRIER v. predisposed,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Treatment of Demidocosis

A

Expect minimum of 12 weeks of treatment. Repeat plucks reg. 2 negative scapes two weeks apart.
Avoid steroids as it supresses immune system.
Ivermectin- not collies
-Avermectin (doramectin/ milbemycin)
OR TOPICAL Amitraz shampoo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which skin disorders are steroids contraindicated?

A

Deep pyoderma,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which species get sarcoptic mange?

A

Intensely pruitis caused by sarcoptese ‘scabes’
Common in dogs
Rare in cats
Very rare in horses (notifable)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What type of mite is Sarcoptes?

A

Burrowing mite hence intense pruitis.

Primary lesion is crusted papules.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Flea bite hypersensitivity

A

Caused by flea saliva (contains anticoagulant)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Define hypersensitivity

A

Objectively reproducible signs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is Anioedema

A

Marked localised subcutaneous oedema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How to differentiate urticarial from another swelling?

A

Oedema - thumb mark will leave a pit.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which species are especially predisposed to Urticaria/Angioedema

A

Horses

Acute, recurrent, chronic, seasonal or non-seasonal, may progress to crusting/sloughing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Effectiveness of food serology

A

Food serology is rubbish and not useful.,

Only way to test for food allergy is to remove from diet.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Atopic dermatitis presentation

A

Typically 6months to 3 years. No sex predis.

Pruitis, rashes, ear infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Skin lesions for atopic dermatitis

A

No primary lesions.

Erythema or Erythematous maculopapular rash.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Define urticaria

A

Multiple wheals (hives)- circumscribed rasied lesions caused by dermal oedema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How to differentiate oedema from inflamm

A

Oedema = thumb prints leave a pitt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Define angioedema

A

Angioedema is marked localised subcutaneous oedema.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

4 Arachnids that cause skin disease

A

Demodecosis, sarcoptic mange, cheyletelssis, tromiculiasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When are cases of Trombiculiasis generally seen. Laymans term =
Typical presentation

A

Harvest mite. Strictly seasonal. July to Sept/Oct.

Asymptomatic to severely pruitic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Treatment of Trombiculiasis?

A

No licenced treatment: Fipronil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Cheyletiellosis is seen is which species

A

Cats, dogs, rabbits.

Walking dandruff. Pruitis mild to severe. Primarily dorsal trunk. ZOONOSIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Treatment of Cheyletiellosis

A 
Therapy often difficult > 6 weeks. No licenced treatment. 
Amitraz: dog 
Fipronil
Selamextin
Moxidectin
Ivermectin
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is Demodecosis

A

An inflamm parasitic skin disease characterised by the presence of larger than normal numbers od demodectin mites. Common in dog. V. rare in horse.
Cigar shaped
small numbers ARE NORMAL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Onset of Demodecosis

A 
Juvenile onset, localised= recover spontaneously
Juvenile onset, generalised = inherited predisposition
Adult onset (norm >2 yrs) suspect underlying immunosup (drugs, endocrinopathy, neoplasia)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Treatment of Demosecosis

A

Min 12 weeks treatment. Monitor by repeat plucks.
Avoid steroids
Small numbers of Demodex mites are normal!!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Difference between intersitital and interface patterns of dermatitis

A

Interstitial: Interstitial dermatitis is the spreading out of inflamm cells from original perivascular pattern.
Interface: Dermo-epidermal junction is obscured by accumulation of inflamm cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Interface dermatitis often reflects

A

Autoimmune disease targetting epidermis or drug reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Example of a surface mite and a burrowing mute

A

Surface mite: Cheylietella - walking dandruff (cat, dog, rabbit)
Burrowing mite: Sarcoptes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Age of onset of Flea bite hypersensitivity

A

3-5 years old.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Which species are most commonly affected by urticaria and angioedema?

A

Horses are esp predisposed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Atopic dermatitis age of onset

A

6mnts to 3 years.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Two pathogens associated with (skin) ear infections

A

Staphlococcus pseudointermedius and Malassezia.

36
Q

How is atopic dermatitis diagnosed?

A

Diagnosis is by ruling out other pruitic Dx e.g. ectoparasitic diease, skin infections.
Also investigate hypersensitivity to food.

37
Q

Difference between Scale and Crusting

A

Scale: Accum of loose cornified fragments of statum corneum
Crust: PResence of a dried exudate

38
Q

Comfortis contains what active ingredient that cannot be given concurrently with ____

A

Comfortis is Spinosad that CANNOY be given concurrently with Ivermectin. Rapid kill at 4 hrs.

39
Q

Activyl

A

Indoxacarb. Sodium channel blocker. Spot-on q 4 weeks.

>90% activity within 8 hrs.

40
Q

Trifelix is

A

Spinosad + Milbemycin (roundworm/heartworm)

41
Q

Mechanism by which comfortis works

A

Comfortis = spinosad. Targets nACH receptor. Tetracyclic macrolide.

42
Q

Mechanism by which Indoxacarb works

A

Indoxacarb; sodium channel blocker. .

Adulticide

43
Q

What is the insect growth regulator that inhibits chitin synthesis

A

Lufenuron= program injection. Insect development inhibitors

44
Q

2 insect growth regulators

A

Juvenile hormones analogues; methoprene and pyriproxyfen OR lufenuron (insect devel inhibitor)

45
Q

Capstar active ingred

A

Nitenpyram:Mdog and cat. Nopersistance

V. quick kill.

46
Q

Active ingred in Advantage

A

Imidacloprid. DOG CAT AND RABBIT.
efficacy reduced by wetting.
Only fleas

47
Q

Fipronil is active against

A

WFleas and ticks.

48
Q

Why is advantage plus dog only

A

Advantage is imidacloprid = fleas only.

Advantage plus / Anvantixis imidacloprid + permethrin = toxic to cats

49
Q

Blue Dobermans are particularly predisposed to what dermapathology?

A

Colour dilution alopecia

50
Q

Basset hounds are particularly predisposed to what dermapathology?

A

Mallassezia

51
Q

An epidermal collerette is an example of a primary or secondary lesion

A

Secondary lesion (remnants / conjoining of a papule)

52
Q

A black head is aka

A

a COMEDO

53
Q

What are follicular casts

A

Accumulation of keratin that adheres to hair shaft

54
Q

What is a macule

A

A circumscribed flat area of change in colour of the skin less than 1 cm in diameter.

55
Q

Difference between Papule and Plaque

A

Papule: Small, solid elevation of the skin less than 1 cm in diameter
Plaque: Larger, flatter elevation of the skin, sometimes caused by coaleasing papules

56
Q

Difference between a papule and a pustule

A

Papule: Small solid elevation less than 1 cm
Pustule: Small ciccumscribed elevation containing pus (norm Staph pyoderma)

57
Q

What is Spaniel Seborrhoea

A

Seborrhea is the flow of sebum ‘greasy exudation’

It is a primary defect in cocker spaniels (ceruminous otitis externa) Treatment. Shampoo or Vit A

58
Q

Clinical signs of Sebaceous adenitis.

What other much more common disease produces similar signs?

A

Follicular casting/ Casting.

Demidocosis products similar signs

59
Q

Aeitology of Sebaceous adenitis

A

Various breeds (st Poodle, akita)
Sebaceous glands destroyed (localised/generalised scaling)
Varying alopecia.
Treatment: Shampoo, vit A (cyclosporin works well off-licence)

60
Q

Breed predisposition for Sebacious ad

A

Poodles, Akitas and Samoyoyds

61
Q

Treatment for Scabies.

A

Amitraz weekly for 6 weeks. Prednisalone for 10 days. Cephalexin if secondary bacteria.
Aim for resolution in 6 weeks.

62
Q

In what species is Ivermectin contraindicated?

A

Ivermectin causes a fatal idiosyncratic reaction in Collies.

63
Q

Clinical signs of Superficial necrolytic dermatitis (aka Diabetic dermatosis)

A

Erosive, crushing ulcerative diease that commonly affects the footpads, extremities and periorificial skin of middle-aged and old dogs.

64
Q

Pathogenesis of Superficial necrolytic dermatitis (aka Dibaetic dermatosis)

A

Seen with hepatic disease/Pancreatic glucogonoma. Pathogenesis is unclear- Hypoaminoacidaemia?

65
Q

What bacteria are involved in Pyoderma?

A

Staph. pseudointermedius.

66
Q

Diagnosis of Pyoderma

A

Look for underlying cause as pyoderma is always secondary.

Clinical signs: Papules, Pustules, Epidermal collarettes

67
Q

Infection in body folds is known as

A

Intertrigo

68
Q

What is the difference between Intertrigo and Impetigo

A

Intertrigo: Infection in body folds
Impetigo: Very common highly infectious cause of superficial pyoderma in puppies.

69
Q

Deep pyoderma is known as

A

Furunculosis.

Also deep pyoderma =- Bacterial granuloma

70
Q

Hot spots are known as

A

Pyotraumatic dermatitis. No satelitte lesions

71
Q

What do sateliite lesions tell you about the skin disease?

A

Satelitte lesions = suspect furnculosis as haemtageous spread. With hot spot aka Pyotraumatic dermatitis no satelitte lesions

72
Q

Treatment of Impetigo

A

Pustules in interfollicular epidermis. Young dogs affected, Ventral abdomen. Often responds to TOPICAL THERAPY ALONE.

73
Q

Progression of normal skin lesion for superficial pyoderma

A

Macule -> Papule –> Pustule –> Epidermal collarette

74
Q

Duration of treatment for Superficial pyoderma and Depp Pyoderma?

A

Superficial pyoderma - 3 weeks or 1 week beyound complete cure.
Deep pyoderma: 4-6 weeks or 2 weeks beyond complete cure

75
Q

Dermatophilosis affects primarily which species

A

D. conglososis. Branching filamentous actinomycete. Affects mainly ruminants and horses (but also humans)
Mud dever in horses
Can occur secondary to tick infestation.

76
Q

The dermal papilla is largest during which stage of hair growth?

A

Anagen (growth). Smallest in Telogen (rest)

77
Q

Which stage of the hair growth cycle is cessation of hair growth

A

Catagen.

78
Q

What stage of the hair growth cycle are hairs shed

A

Telogen (resting phase)

79
Q

Symmetrical alopecia in the cat is most likely…

A

Self inflicted therefore unless proven otherwise work up as SELF TRAUMA = PRUITIS

80
Q

Dermatological signs associated with Cushings

A

Alopecia, thin skin.

Hyperadenocorticism,

81
Q

How to test for Dermatophytosis

A

Woods lamp (green on hairs not skin)
Culture
Direct microscopy

82
Q

Treatment of Dermatophytosis in cats (inc cascade)

A

Intraconzole (oral) - (Intrafungal)

83
Q

Which topical medicine (for the treatment of ringworm) good for dogs/horses kills CATS?

A

Imaverol

84
Q

Treatment of Malazyeszia

A

Topical as only superficial. Malaseb every 3 days for 3 weeks.

85
Q

Which yeast buds on a narrow base?

A

Budding on a narrow base

86
Q

Malassezia bud on a

A

Malassazia pachidermatis bud on a wide base. Basset hounds are espc. predisposed.

87
Q

Mucormycosis causes what in farm animal

A

Gastritis and Rumeinits in calves

VetMed Year 4- Term 2 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions