Pruritus Flashcards
1
Q
Name the 4 main categorical causes of itch
A
Pruritoceptive
Neuropathic
Neurogenic
Psychogenic
2
Q
What does a pruritoceptive itch mean?
A
something in the skin that triggers itch eg inflammation or dryness
3
Q
What does a neuropathic itch mean?
A
Damage to any peripheral nerves, causing itch
4
Q
What does a neurogenic itch mean?
A
No evident damage in CNS but caused by other effects on it eg opiates
5
Q
What does a pyschogenic itch mean?
A
Psychological causes with no CNS damage eg delusions of infestation
6
Q
What category of itch would an insect bite fall under?
A
Pruritoceptive
7
Q
What category of itch would scalp psoriasis fall under?
A
Pruritoceptive
8
Q
Systemic diseases associated with itch?
A
haematological paraneoplastic liver and bile duct psychogenic kidney disease thyroid disease
9
Q
Anti-itch treatments?
A
sedative antihistamines emollients eg menthol antidepressants phototherapy opiate antagonists
10
Q
Would you prescribe sedative or non-sedative anti-histamines for itch
A
sedative
