Formative Feedback Flashcards
L sided scrotal pain, radiating to abdo. L side is swollen, tender and lying high in scrotum. Dx?
Testicular torsion
How do you differentiate between torsion and epididymitis?
Physical exam - torsion has high riding testicle
Painful L lower leg swelling. 26 weeks pregnant. Marginally raised CRP, normal WCC. First Ix?
Doppler USS lower limb
Why does a marginally raised CRP eliminate cellulitis?
Cellulitis will have REALLY raised CRP eg >50
Why is D dimer not measured for DVT in pregnancy?
D dimer is raised in pregnancy anyway
PE Ix?
V/Q scan
Pt with meningism. CSF microscopy shows segmented neutrophils and gram negative diplococci. Causative organism?
Neisseria meningitidis
What is the most common cause of meningitis in young people?
Neisseria meningitidis
How does TB meningitis differ from normal?
More lymphocytes in CSF in TB
Memory problems gradually, with big decline in last 4 weeks. Cries for no reason. Has episodes of not being able to speak properly. HTN.
O/E increased tone in R arm, low MMSE
CT show white matter hypodensities. Dx?
Vascular dementia
Classic feature of Lewy body dementia?
Hallucinations
What are CT hypodensities in vascular dementia?
Mini infarcts
Zig-zagging and flashing lights in both eyes + headaches. 2-3 times a month, 30 mins at a time. Associated w N&V. Vision affected in each attack but then returns to normal. Dx?
Migraine
What is PC of retinal detachment?
Loss of vision
Collapse, left hemianopia, left facial palsy, expressive dysphasia, L sided motor loss and weakness. Most likely artery affected?
Right middle cerebral artery
When is speech affected in stroke?
When the stroke is in the dominant hemisphere
Epigastric pain radiating to back + vomiting. ++ETOH. Normal CXR.
O/E raised amylase, mildly raised ALT&AST. Dx?
Pancreatitis
Dyspepsia, 3 month Hx of weight loss & fatigue.
O/E low MCV, low Hb. Best Ix?
OGD
Unable to walk and not passed urine for 8 hours. PMH carcinoma of prostate with bone mets. Red flag Dx to exclude?
Cauda equina compression
Malaise and fatigue. Koilonychia but normal cardio exam. Dx?
Iron deficiency anaemia
Abdo pain and vomitting. ABG: pH 7.23 pCO2 low HCO3 low Glucose ++++ Next Ix to reach diagnosis?
Capillary ketones
Why is ABG not the best Ix to do with DKA?
VBG gives the same info and is much less painful