General Flashcards
Common uses of opiates
Analgesia
Anti-tussive (ACh suppression needed for cough activation)
Euphoric effects (serotonin release nucleus accumbens)
Opiates side effects
Decreased gastric motility
Decreased emptying
Increased water reabsorption
(Constipation)
Respiratory depression N&V Pupillary constriction Pruritis Hypotension
Opiate overdose prescription
Naloxone
Hypercalcaemia symptoms
Stones- renal or biliary
Bones- bone pain
Abdominal Groans- abdo pain, N&V
Thrones- polyuria, leading to dehydration
Psychiatric Overtones- depression, anxiety, cognitive dysfunction
Also: Constipation, lethargy
Which is forehead sparing?
UMN lesion or LMN lesion
UMN lesion is forehead sparing (due to alternative pathways in the brainstem)
Brisk reflexes suggest the presence of?
An upper motor neurone lesion
3 Cardiac causes of clubbing
CIA
Congenital cyanotic heart disease
IE
Atrial myxoma
4 Resp causes of clubbing
CBC
Lung cancer
Bronchiectasis
Cystic fibrosis
Interstitial lung disease (Fibrosing alveolitis)
3 Abdo causes of clubbing
CCC
Cirrhosis
Coeliac disease (Malabsorption in general)
Crohn’s disease
Na normal range
135-145 mM
K normal range
3.5-5.0 mM
U normal range
3.5-6.5 mM
Cr normal range
70-120 micromol/l
Hb normal range
M 135-175
F 115-165 g/L
WCC normal range
3.6-11.0 x10^9 L
Platelets normal range
140-400 x 10^9 L
3 Cardiac Differentials of Chest Pain
IHD
Aortic dissection
Pericarditis
Phaechromocytoma hypertensive crisis, drug to give
Phentolamine
a1 antagonist causing vasodilation
BCC characteristics
Shiny, pearly nodule, rolled edges and central ulceration.
Blood vessel: Telangiecstsasia
Eczema (atopic dermatitis) characteristics
“Itchy, dry, erythematous, rough rash”
Usually on flexor surfaces (elbows, knees), Cheek and chin in children
Family history of atopy (hay-fever, asthma)
Pathophysiology:
Low fillagrin: Skin barrier defect
Type I hypersensitivity
Psoriasis key points
Immune-mediated inflammatory condition
Affects:
Nails: Pitting, onycholysis
Joints: Psoriatic arthritis
Types of psoriasis
Plaque
Localised
Guttate
Erythrodermic
Contact dermatitis key points
Type IV hypersensitivity reaction (after 2-3 days)
Lupus antibodies and type of HS reaction
ANA (anti-nucleus) most sensitive
Anti-dsDNA- most specific
Type III Hypersensitivity reaction (immune complex mediated)