CARDIOVASCULAR SYSTEM Flashcards
How many surgical patients get DVT?
a) 1-2%
b) 20-50%
c) 60-70%
d) 80-90%
b) 20-50%
name 3 symptoms presents on the calf of a DVT patient
tenderness
warmth
swelling
pitting oedema
give one systemic symptom which may be present for DVT
mild fever
What is Homan’s sign for DVT?
a) pain on knee flexion
b) pain on dorsiflexion
c) pain on knee extension
d) pain on plantarflexion
b) pain on dorsiflexion
why shouldn’t Homan’s sign be performed?
may dislodge clot
if pain is referred to the iliofemoral region, what does this mean in reference to motility of the clot?
more likely to dislodge
in complete occlusion due to DVT, what sign of peripheral hypoxia might you see in the leg?
cyanosis
what is post-phlebitis syndrome?
ulceration after complete occlusion following a DVT
give 2 iatrogenic risk factors for DVT
HRT
COCP
give two lifestyle risk factors for DVT
immobility
obesity
give 3 physiological risk factors for DVT
malignancy
pregnancy
thrombophilia
past DVT
what is a thrombus in contrast to a clot?
solid mass in circulation from living blood constituents in life (not dried, dead etc)
what are red thrombi made of?
a) red cell & fibrin
b) red cell & cholesterol
c) white cell & fibrin
d) white cell & cholesterol
a) red cell & fibrin
What is Well’s score used to calculate?
DVT risk
what would a Well’s score of 3 or more indicate?
high risk DVT
What are these criteria used to calculate? active cancer previous DVT recent immobilisation swollen superficial veins calf swelling >3cm entire leg swelling localised swelling
Well’s Score
DVT
what specific blood test would you use in the case of suspected DVT?
D-Dimer
what specific radiological test would you do in a suspected DVT?
compression ultrasound
give 2 differential diagnoses for DVT
ruptured baker’s cyst
cellulitis
what is the first drug you would give in treatment of DVT?
LMWH e.g. enoxaparin
when would INR indicate it would be safe to stop LMWH?
a) 2-3
b) 1-2
c) 4-5
d) 9-10
a) 2-3
name an anti-coagulant you might also give in the case of DVT
warfarin
name a factor Xa inhibitor that you might also give in the case of DVT
fondaparinux
give a complication of DVT
pulmonary embolism
how common is acute coronary syndrome?
a) 1/1000
b) 5/1000
c) 50/1000
d) 100/1000
b) 5/1000
name 2 rare causes of ACS
emboli
coronary spasm
coronary artery vasculitis
what differentiates between chest pain of unstable angina and of an MI?
unstable angina = 20mins
give two places that ACS chest pain radiate to?
left arm
neck
jaw
Give 4 symptoms of ACS
sweating
tachycardia
nausea
breathlessness
name 2 signs you might hear when listening to the heart on chest examination in ACS
4th heart sound
pan systolic murmur
pericardial friction rub
name a sign you might see when observing the neck of a patient with ACS
raised JVP
name a sign you might hear when listening to the lungs of someone with ACS
crepitation due to pulmonary oedema
how would you distinguish a silent MI from other ACSs?
no pain
which of these is NOT at risk of getting a silent MI?
a) old
b) diabetic
c) immobile
c) immobile
what is the difference between the tissue damage in a STEMI and a NSTEMI?
STEMI = infarction NSTEMI = ischaemia (reversible)
what are the three main causes of the arterial narrowing that can cause ACS?
rupture
thrombosis
inflammation
what is the end result of cells that are affected to artery narrowing of cells in ACS?
iscahemia
infarction
necrosis
what is the sinus rhythm in an inferior MI and why does this occur?
sinus bradycardia
vagal stimulation
what is a transmural MI?
necrosis through the thickness of the pericardium
name 7 risk factors for ACS
age male obesity smoking hypertension diabetes cholesterol sedentary lifestyle family history stress LVHF cocaine
why are ACS attacks more common in the morning?
blood pressure lower at night.
when it rises in the morning can dislodge a clot
what would high troponin and ACS symptoms indicate?
MI
what would normal troponin but ACS symptoms indicate?
unstable angina
what do the cardiac enzymes CK and CK-MB indicate in ACS?
myocyte death
when would you expect lactate dehydrogenase to rise after an MI?
a) minutes
b) hours
c) days
d) weeks
c) days
name 2 things you might see in a chest x-ray of someone with ACS
cardiomegaly
pulmonary oedema
widened mediastinum
give 4 differential diagnoses for ACS
pericarditis angina pulmonary embolism aortic dissection myocarditis pneumothorax GORD
what is the mortality for MIs within 2 hours of onset?
a) 5%
b) 25%
c) 50%
d) 75%
c) 50%
what is the 4-way treatment plan for acute STEMIs?
aspirin 300mg
nitrate GTN spray
clopidogrel 300mg
oxygen
what surgical treatment would you recommend for an acute STEMI?
PCI angioplasty
what three drugs would you give in the case of an NSTEMI?
beta blockers
LMWH
nitrates
fill in the blanks for ACS rehabilitation advice:
no __ for 1 month, no __ __ for 2 months
sex
air travel
what 4 drug groups would you give long term following an MI?
anti-coagulant
statin
ACE inhibitors
beta blockers
name 3 acute serious cardiac complications of ACS
cardiac arrest
heart block
cardiac tamponade
name 2 causes of sudden death following MI
ventricular fibrillation
asystole
name 2 peripheral complications of MI
DVT
PE
which of these is a cardiac enzyme that will rise within hours of an MI?
a) ALT
b) AST
c) ALP
d) AZT
b) AST
what is Dressler’s syndrome?
immune mediated pericarditis
what immune mediated, post-MI condition do these symptoms indicate?
post MI: fever, pericardial effusion, anaemia, cardiomegaly
a) Dressler’s
b) Robert’s
c) Mallory-Weiss
d) SLE
Dressler’s symdrome
how is dressler’s syndrome treated?
a) self limiting, NSAIDs & steroids
b) self limiting, antibiotics & DVT prophylaxis
c) emergency, anti-coagulants & statins
d) emergency, antibiotics and DVT prophylaxis
a) self limiting, NSAIDs & steroids
what is the prevalence of angina pectoris in the UK?
a) 2%
b) 10%
c) 40%
d) 60%
a) 2%
what causes the pain of angina pectoris?
insufficient oxygen supply to meet heart’s demand
what causes the insufficient oxygen to the heart in angina pectoris?
atherosclerosis & narrowing of vessels
name 2 other causes of angina pectoris
anaemia
thyrotoxicosis
hyperlipidaemia
what environmental factors can precipitate angina pectoris?
exercise
cold
heavy meals
name 3 risk factors for angina pectoris
smoking
exercise
hypertension
diabetes
what is classical angina?
exercise provoked
disappears w rest
what is decubitus angina?
when lying
what is nocturnal angina?
wakes patient
vivid dreams
what is prinzmetal’s angina
at rest
without trigger
what ECG abnormality would you see in prinzmetal’s angina?
ST elevation during pain
in which gender is Prinzmetal’s angina more common?
female
what is cardiac syndrome X?
abnormal stress response to exercise with no artery abnormality
which gender is cardiac syndrome more common in?
female
what cardiac imaging might you do in suspected angina?
echocardiography
CT coronary angiography
name 4 drugs given to treat angina
aspirin 75mg
beta blockers
calcium channel blockers
GTN spray
name 2 surgical interventions that you might consider if angina is severe or doesn’t respond to drugs
PCI
CABG
which of these facts is wrong about prevalence of AF?
a) 5% in over 65s
b) 10% in over 70s
c) 15% in stroke patients
d) 20% of hyperthyroid patients
d) 20% of hyperthyroid patients
which of these doesn’t cause AF?
a) heart failure
b) MI
c) hypertension
d) hypothyroidism
e) mitral valve disease
d) hypothyroidism
which of these doesn’t cause AF?
a) PE
b) pneumonia
c) pneumothorax
d) alcohol
e) surgery
f) sepsis
c) pneumothorax
what is the characteristic pulse pattern of someone with AF?
irregularly irregular
give 3 possible symptoms of AF
palpitations
chest pain
dyspnoea
syncope
name 3 risk factors for AF
rheumatic heart disease
alcohol intoxication
hypertension
thyrotoxicosis
what electrolyte imbalances can predispose to atrial fibrillation?
hypokalaemia
hypermagnaemia
what is the normal heart rate for someone with AF
a) 40-60bpm
b) 60-80bpm
c) 120-180bpm
d) 180-200bpm
c) 120-180bpm
what electrical fault results in AF?
AVN intermittently responds causing irregular ventricular contraction
which of these isn’t a result of AF?
a) stasis of blood in heart chambers
b) neovascularisation
c) cardiac output drops
b) neovascularisation
how long does acute AF last?
less than 48 hours
what is paroxysmal AF?
recurrent sudden episodes
what is the difference between persistent and permanent AF?
persistant = rhythm treatable permanent = rhythm non-treatable
what ECG sign shows AF?
absent P waves