PassMed October Flashcards
(438 cards)
What is the commonest cause of encephalitis in adults?
HSV
How do you manage rectal tumours surgically?
High/mid rectal tumours = anterior resection
Low rectal tumour = abdoperitoneal excision
Where are the ECG changes in anteroseptal MI? Which artery has been affected?
V1-V4
LAD artery
Where are the ECG changes in inferior MI? Which artery has been affected?
II, III and aVF
Right coronary artery
Where are the ECG changes in anterolateral MI? Which artery has been affected?
V3-V6, I and aVL
LAD or Left circumflex artery
Where are the ECG changes in lateral MI? Which artery has been affected?
I, aVL +/- V5 & V6
Left circumflex artery
Where are the ECG changes in posterior MI? What additional changes are seen? Which artery has been affected?
V1-V3
Horizontal ST depression, tall, broad R waves, upright T waves and dominat R wave in V2
Left circumflex and/or Right coronary
What may a new LBBB point towards?
ACS
What is a normal anion gap?
8-14
Name the main causes of metabolic acidosis with normal anion gap?
GI loss
Renal tubular acidosis
Drugs (e.g. Acetazolamide)
Addison’s disease
Name the main causes of metabolic acidosis with riased anion gap?
Due to lactate = shock/hypoxia
Due to ketones = DKA/alcohol
Due to urate = renal failure
Acid poisoning (with methanol or salicylates)
Chronic paracetamol use
What does a positive Rinne’s test mean?
Normal test
Air conduction > bone conduction
How long must patients trial hearing aids before consideration for cochlea implants?
> 3 months
How do we measure which area of the brain has been affected by ischaemia in TIA?
MRI brain with diffusion-weighted imaging
What is Parazosin?
An alpha blocker used to help with urinary retention secondary to BPH
True or false, antihistamines can lead to urinary retention?
True!
What will urine sodium and urine osmolality be like in pre-renal disease?
Urine sodium <20
Urine osmolality >500
How does Amiodarone affect Warfarin and Digoxin?
Decreases the effect of warfarin and increases the affect of digoxin
What must you monitor in patients on long term amiodarone?
LFTs and TFTs every 6 months
Which drugs should be used 1st line in the management of HTN in those with T2DM?
ACEis or ARBs
Above which home and ambulatory blood pressure readings is BP treatment indicated?
<80 years = 140/90 in clinic or 135/85 ABPM
>80 years = 150/90 in clinic or 145/85 ABPM
Which nerve root comes out below the vertebrae? Which vertebrae does it come out below?
C8
Comes out below C7
What are the symptoms of diverticulitis?
Lower left quadrant abdo pain & guarding, fever, bloating, rectal bleeding & constipation
How does hypokalaemia appear on ECG?
U waves, flattened T waves, borderline elongated PR interval