Mock 1 Flashcards
What is the initial management of ACS?
300mg Aspirin
Describe the pharmacology of spironolactone
It inhibits the aldosterone receptor in the distal tubules
Describe the pharmacology of furosemide (loop diuretic)
Inhibition of the sodium/potassium/chloride symporter in the loop of Henle
Describe the pharmacology of benzoflumethiazide (thiazide diuretic)
Inhibition of the sodium chloride transporter in the distal convoluted tubule
Describe the pharmacology of CCBs on the nephron
Inhibition of L-type voltage gated calcium channel in the nephron
What are absent P waves indicative of?
AF
What are wide QRS complexes indicative of?
Bundle branch blocks
What is used to determine stroke risk after a TIA?
ABCD2
What is conn’s syndrome?
Hyperaldosteronism
What electrolyte problem does conn’s syndrome cause?
Hypokalaemia
Hypernatraemia
What does a low renin and high aldosterone suggest?
Primary hyperaldosteronism
What does a high renin and high aldosterone suggest?
Secondary hyperaldosteronism
What happens to aldosterone levels in Addisons disease?
They decrease
Give 3 symptoms of Cushings
Abdominal striae
Moon face
Buffalo hump
Give 3 symptoms of Addisons
Hyperpigmentation
Central weight loss
Hypotension
How would you differentiate between central and nephrogenic diabetes insidipidus?
Water deprivation test with desmopressin
If urine osmolality changes it is cranial/central
What fasting plasma glucose is diagnostic for DM?
More than 7mmol/L
What GTT/random plasma glucose w symptoms is diagnostic for DM?
More than 11mmol/L
What HbA1c is diagnostic for DM?
48 +
What is carcinoid syndrome?
A paraneoplastic syndrome where neuroendocrine cells produce 5-HT
What are the symptoms of carcinoid syndrome?
Flushing
Diarrhoea
Dyspnoea
What initial test would you order if coeliac disease is suspected?
IgA TtG or IgA endomysial antibody
What is Rovsing’s sign?
Pain in the right iliac fossa on palpation of the LIF (appendicitis)
How would you describe Barrett’s oesophagus?
The distal oesophageal epithelium undergoing metaplasia from squamous to columnar
What cells do PPIs act on?
Parietal cells - they block H+/K+ ATPase
What do mucous neck cells secrete?
Mucus and HCO3-
What do chief cells secrete?
Pepsinogen and gastric lipase
What do ECL cells secrete?
Histamine
What cells do H2 agonists work on?
ECL Cells
What is the gold standard for investigating for renal colic?
Non-contrast CT KUB