Mock Exam Flashcards
What to measure in Pagetβs disease of bone?
alkaline phosphatase
plain x-ray
?? bsiphosphonate san
what kind of deafness does Pagets disease of bone cause?
conduction (pagetβs disease of the osscicles) and nerve deafness (compression of 8th nerve)
test with tuning fork
what kind of clinical test should you perform in patients with pagets disease in finals?
Weber and Rinne
What blood marker is increased in osteomalacia?
alkaline phostphatase
What is osteomalacia
lack of vitamin D -> secondary hyperparathyroidism?
what is increased after myocardial infarction?
Troponins
CK (MB)
AST
LDH
they will have a low potassium at presentation because the adrenaline causes it to drop
What is raised in a patient with Addisons disease?
potassium
What is raised in a patient with jaundice due to gall stone?
alkaline phosphatatse
why are the patterns
different enzymes in different zones of the portal triad
different released in the different types of damage
liver on histology
hexagon
portal vein
portal triad
duct with duct cells
Which LFT is mainly raised in viral hepatitis?
alanine aminotransferase (ALT)
which LFT is most increased in a patient with chronic alcoholic cirrhosis?
AST =
lots of cells die, nodules, wonβt have the nice anatomy
which marker is increased in prostate cancer?
acid phosphatase = prostate specific antigen
what is acid phosphatase?
prostate specific antigen
what is another name for PSA?
acid phosphatase
What is low in primary hyperparathyroidism?
vitamin D
because it is consumed, PTH activates vitamin D
alk phos goes up
What is measured when vitamin D levels are measured?
xx
What rises most accurately in acute renal failure where the cause is dehydration?
Urea
(goes up very quickly in a dehydrated patient)
what rises most in chronic renal failure caused by a fall in GFR?
creatinine
What is a good marker of glucose control over the last 3 w?
fructosamine
=> useful in patients with a rapidly changing glucose.
HbA1c would be over the last 3 months
PTH in primary hyperparathyroidism
normal or high
if a calcium is high the PTH should be V low, if it is not -> primary hyperparaathyroiidisim
What is Lesch Nyhan syndoem?
What occurs in Lesch Nyham syndrome? (rheum)
Gout
What parathryroid finding occurs in osteomalacia?
secondary hyperparathyroidism
causes of isolate hypernatraemia in the context of polydipsia and polyuria
diabetes insipidus / VP deficiency
Leptospirosis presentation
What is the full name for rodent ulcer
basal cell carcinoma
thyroid histology
liver histology
central vein
portal triad
many dance cells with visible nuclei
histology of kidneys
glomeruli
tubules
Adrenal histology lecture
medulla in the middle
xxx
SIADH
high urine osmolality
low blood osmolality
xxx
psychogenic polydipsia
sodium in cranial diabetes insipidus?
sodium would be high in cranial diabetes insipidus
like 150 and 160
Renin in Connβs
suppressed!!!
hypertension and hyperkalaemia causes with high aldosterone
RAS (normal renin)
Connβs (renin suppressed)
What controls renin?
causes of RAS
- paeds ???
- high cholesterol ??
RAS vs Connβs
renin is suppressed in Connβs syndrome
good discriminator
ACE inhibitors in patients with diabtest
initially worsens creatinine
xxx
ACE inhibitors in diabetes patients - why?
mamicroalbuminuria disappears
b/c the pressure is lower
which drugs protect kidneys in diabetes?
ACEi
SGLT2 inhibitors
Should you stop ACEi when creatinine rises after starting it in diabetes?
usually no - in most cases it makes the creatinine rise a bit
in severe cases e.g. if someone comes to the hospital with sepsis you donβt
also donβt give ACEi in RAS
what BP med is contraindicated in RAS?
ACEi
deadly malaria
P. falciparum (kills many patients by obstructing blood flow)
P. vivax - what additional treatment?
primaquine 30mg
because of the parasites in the liver
what are thick and thin films for?
thick - is there malaria?
thin - what type of malaria is it and what species is it?
45yo female with itchy skin, anti-mitochondrial antibodies
Primary biliary cirrhosis
Kayser Fleischer rings - dx?
Wilsons disease
20 yo male with jaundice and malaise, high ALT and recent travel to India
hepatitis A
45 yo male with leucocytosis, high bilirubin, low albumin, folate and b12. prolonged PT. Dx?
alcoholic liver disease
radiological finding in PSC?
beaded appearance on ERCP