Practice Paper 3 Flashcards
What is the treatment for acute coronary syndrome?
300mg aspirin Clopidogrel Treatment dose heparin b-blocker stat GTN spray Morphine
From LAZ:
o Admit to coronary care unit
o Oxygen, IV access, monitor vital signs and serial ECG
o GTN
o Morphine
o Metoclopramide (to counteract the nausea caused by morphine)
o Aspirin - 300 mg initially, followed by 75 mg indefinitely.
o Clopidogrel (300 mg initially, followed by 75 mg for at least 1 year if troponin positive or high risk)
o LMWH (e.g. enoxaparin)
o Beta-blocker (e.g. metoprolol)
Pt presents to gp with painless haematuria Has a recent history of a sore throat He is producing less urine and the urine is brown There are no other symptoms BP is 155/90 \+++ blood on urine dip High creatinine What do you suspect?
Nephritic syndrome triad:
- Hypertension
- Proteinuria
- Haematuria
What is nephritic syndrome?
Nephritic syndrome is a syndrome comprising signs of nephritis, which is kidney disease involving inflammation.
It often occurs in glomerulonephritis, which is characterized by a thin glomerular basement membrane and small pores in the podocytes of the glomerulus, large enough to permit proteins and red blood cells to pass into the urine
Whats the difference between nephritic syndrome and nephrotic syndrome?
Nephritic = both blood and protein move into urine Nephrotic = ONLY protein
Tell me about digoxin
Its used for the treatment of chronic heart failure
Its an inotrope
it does NOT improve survival
It works by blocking the na/k pump causing a rise in iIC na which via na/ca exchange increases the IC conc of ca and hence contractility (inotrope).
It hence increases the AV delay and the HR is indirectly slowed.
Define hodgkins lymphoma
Lymphomas are neoplasms of lymphoid cells, originating in the lymph nodes or other
lymphoid tissues.
Hodgkin’s lymphoma (15% of all lymphomas) is diagnosed histopathologically by the PRESENCE OF REED-STERNBERG CELLS (BINUCLEATE LYMPHOCYTES)
Whats the aetiology of Hodgkins lymphoma?
Unknown
EBV trigger in 50% (“glandular fever”)
Epidemiology of hodgkin’s lymphoma
MALES
bimodal: peaks at 20-30 and >50
What are the PC of hodgkins?
• Painless enlarging mass (unilateral)
o Most commonly in the neck
o Can also be in the axilla or groin
• The mass may become painful after ALCOHOL INGESTION
• B symptoms of Lymphoma
o Fever > 38 degrees - If this is cyclical it is referred to as Pel-Ebstein fever
o Night sweats
o Weight loss > 10% body weight in the past 6 months
- these are associated with a worst prognosis.
• Other symptoms
o Pruritis
o Cough
o Dyspnoea
Recognise the signs of Hodgkin’s lymphoma on physical examination
• Non-tender firm rubbery lymphadenopathy***
(may be cervical, axillary or inguinal)
• Splenomegaly (or sometimes, hepatosplenomegaly)
• Skin excoriations
• Signs of intrathoracic disease (e.g. pleural effusion, superior vena cava obstruction)
What is the staging for hdgkin
• Ann Arbor Staging
o I = single lymph node region
o II = 2+ lymph node regions on one side of the diaphragm
o III = lymph node regions on both sides of the diaphragm
o IV = extranodal involvement
o A = absence of B symptoms
o B = presence of B symptoms
o E = localised extranodal extension
o S = involvement of spleen
Define psoriasis
• A chronic inflammatory skin disease, which has characteristic lesions and may be complicated by arthritis
Recognise the PC of psoriasis
Recognise the presenting symptoms of psoriasis
• Itching and occasionally tender skin
• Pinpoint bleeding with removing scales (Auspitz phenomenon)
• Skin lesions may develop at sites of trauma/scars (Koebner phenomenon)
Recognise the sings OE for psoriasis
Recognise the signs of psoriasis on physical examination
• Discoid/Nummular psoriasis - symmetrical, well-demarcated erythematous plaques with silvery scales over extensor surfaces (knee, elbows, scalp, sacrum)
- Flexural psoriasis - less scaly plaques in axilla, groins, perianal and genital skin
- Guttate psoriasis - small drop-like lesions over trunk and limbs
- Palmoplantar psoriasis - erythematous plaques with pustules on palms and soles
- Generalised pustular psoriasis - pustules distributed over limbs and torso
- Nail Signs
How does psoriatic arthritis present
• Joint Signs M FIVE presentations of psoriatic arthritis
o Asymmetrical oligoarthritis
o Symmetrical polyarthritis
o Distal interphalangeal joint predominance
o Arthritis mutilans
o Psoriatic spondylitis
What are the main causes of subarachnoid haemorrhages?
- 85% - rupture of a saccular aneurysm at the base of the brain (Berry aneurysms)
- 10% - perimesencephalic haemorrhage
- 5% - arteriovenous malformations, bleeding diathesis, vertebral artery dissection
What are the main RF for subarachnoid haemorrhages?
• Risk Factors
o Hypertension
o Smoking
o Excess alcohol intake
o Saccular aneurysms are associated with:
• Polycystic kidney disease
• Marfan’s syndrome
• Ehlers-Danlos syndrome
What are the presenting symptoms of subarachnoid haemorrhage?
- Sudden-onset worst headache ever THUNDERCLAP
- Nausea/vomiting
- Neck stiffness
- Photophobia
- Reduced level of consciousness
Recognise the signs of subarachnoid haemorrhage on physical examination
Meningism :
o Neck stiffness
o Kernig’s sign
o Pyrexia
What do you expect to find on a LP of a sub. haem?
Xanthochromia = straw-coloured CSF due to breakdown of red blood cells
requires at least 6hrs to show up though - until the rbc break down.
What do you expect to find on a CT scan of sub. haem?
• CT Scan
Hyperdense areas in the basal regions of the skull (due to blood)
What investigations do you do for sub. haem?
• Bloods o FBC o U&Es o ESR/CRP o Clotting
• CT Scan
o Hyperdense areas in the basal regions of the skull (due to blood)
• Angiography - detect source of bleeding
• Lumbar Puncture
o Increased opening pressure
o Increased red cells
o Xanthochromia - straw-coloured CSF due to breakdown of red blood cells
What’s the antidote for paracetamol overdose?
N-acetylcysteine
Whats’s the antidote for opiate overdose?
Naloxone