Nausea and Vomiting Flashcards
1
Q
What nerves and trigger zones are involved in the activation of the vomiting centres?
A
vestibular system
vagus nerve
chemoreceptor trigger zones in floor of 4th ventricle
cortical input
2
Q
Where are the vomiting centres?
A
lateral reticular formation of medulla
3
Q
How long does vomiting occur if it is termed acute?
A
<48 hours
4
Q
What are some acute causes?
A
alcohol, toxins, medication acute infection appendicitis gall stones acute neurological disease (migraine)
5
Q
What are some chronic causes of vomiting?
A
gI obstruction PUD endocrine metabolic neurological psychosocial
6
Q
What are some common causes of vomiting with severe abdominal pain?
A
acute pancreatitis
peptic ulcer
biliary colic
7
Q
What are some less common causes of vomiting with severe abdominal pain?
A
myocardial infarction
gastric volvulus
intestinal obstruction
8
Q
What investigations should be carried out when presented with vomiting?
A
FBC CRP ESR coag and group and hold U+E LFT calcium amylase CXR AXR
