Cardio Practice Qs Flashcards
A 76-year-old women presents in your clinic with complaining that sometimes when shes going up the stairs she feels faint. Upon taking her history she has stable angina, dyspnoea and heart failure. You suspect she has a heart valve problem.
a) What would you expect aortic stenosis to sound like and explain the pathophysiology?
Collapsing water hammer pulse
Early diastolic murmur *might b wrong is late
Leakage of blood into the left ventricle
During diastole due to ineffective coaptation of aortic cusps
If this woman had mitral stenosis, what would you expect to see on a chest X-ray?
Enlarged left and right ventricles.
It must be noted that cardiac echos not XR are the better investigation for cardiac murmurs.
What does mitral stenosis sound like on auscultation?
Pansytolic murmur Soft S1 sound
A 43-year-old women presents in your clinic with exertional dyspnoea, fatigue, and a nocturnal cough with pink frothy sputum. You examine her and from this diagnose her with heart failure.
a) List some clinical signs you might find on examination or on a chest X-ray.
3rd/4th heart sounds
Crepitations in lung bases.
ABCDE – alveolar oedema, Kerley B lines, cardiomegaly, dilated upper lobe vessels, effusions
What marker might you find in her blood that could be indicative of heart failure?
Brain natriuretic peptide, troponin I, troponin T, creatine kinase
A 35 year old male presented to the A&E who was very febrile. On further questioning, the patient also has headaches, shortness of breath and arthralgia. On examination, it was noted that there were nail bed splinter haemorrhages, Osler’s nodes and Janeway lesions of the hands.
List 3 investigations that you would want to do for initial investigations of infective endocarditis.
Infective endocarditis is an infection of the endocardium of the heart, commonly this affects the valvular structures.
1st line investigations would often include:
* FBC – anaemia, leucocytosis
* Urinalysis – proteinuria, RBC casts, WBC casts
* Blood cultures – recommend 3 sets prior to starting antibiotics
* ECG
* Echocardiogram
Define atherosclerosis
Accumulation of lipids, macrophages, and smooth muscle cells in the intima of large and medium sized arteries.
List 5 risk factors that can lead to hypertension
Renal disease e.g. renal artery stenosis
Obesity
Pregnancy induced hypertension / pre-eclampsia
Endocrine causes e.g. hyperaldosteronism
High alcohol intake
Metabolic syndrome
Diabetes mellitus
Age >60yrs
FHx of hypertension or coronary artery disease
High salt intake >1.5g/day
Low fruit and vegetable intake
Dyslipidaemia
Physical inactivity
Smoking
Give 2 medical and 2 lifestyle interventions that are indicated in the management of ischaemic heart disease in a primary care setting.
Antihypertensives Statins
Aspirin
Diabetic therapy / encouraging better glycaemic control
Smoking cessation
Advice on diet
Encouraging exercise
A 59-year-old man is seen in the Emergency Department after reporting retrosternal crushing chest pain of 10/10 intensity. He reports the pain is radiating down the left arm and neck. An ECG reveals ST-segment elevation in leads V1 to V6.
a) Other than chest pain, name 4 other symptoms or signs you may find on the history or examination (4 marks)
Symptoms – nausea/vomiting, light-headed/dizzy, short of breath, sweating/diaphoresis, anxiety/dread, palpitations.
Signs – pallor, hypotensive, sweating/diaphoresis.
Name 3 modifiable and 2 non-modifiable risk factors for a STEMI
Modifiable – smoking, hypertension, diabetes, obesity, physical inactivity, poor diet, cocaine use, dyslipidaemia, metabolic syndrome
Non-modifiable – advanced age, male sex, family history of CAD, previous CAD
Give leniency if a valid risk factor falls into a grey area between modifiable and non- modifiable, for example diabetes could fall into either category.
A 1-day-old infant born at full term is noted to have cyanosis of the oral mucosa. On examination, respiratory rate is 40 and pulse oximetry is 80%. Congenital heart disease is suspected and Tetralogy of Fallot is diagnosed after echocardiography.
Name the 4 cardiac defects involved in Tetralogy of Fallot.
- Ventricular septal defect (VSD)
- Pulmonary stenosis
- Right ventricular hypertrophy
- Overriding/misplaced aorta.
A 68-year-old male presents to the Emergency Department with worsening shortness of breath. A chest X- ray shows classic findings of heart failure.
Name 3 findings that may be seen on the chest X-ray.
CXR findings in heart failure is a classic medical school question.
A helpful way to remember is ABCDE:
A – Alveolar oedema (also called bat wings)
B – Kerley B lines (horizontal lines in lower posterior lung fields)
C – Cardiomegaly (cardiac diameter >0.5 width of the thorax)
D – Dilated upper lobe vessels (also called cephalisation)
E – Pleural effusion (shown as blunting of the costophrenic angles)
Describe the differences between 1st, 2nd (type I and II), and 3rd degree heart block. (8 marks)
1st degree –
2nd degree type I (Mobitz I or Wenckebach) –
2nd degree type II (Mobitz II) –
3rd degree –
1st degree - indicated on an ECG by a prolonged PR interval (the time between atrial depolarisation and ventricular depolarisation)
Mobitz I – has progressive prolongation of the PR interval followed by a dropped QRS complex
Mobitz type II second degree AV block is a disease of the distal conduction system (His-Purkinje system). Characterised by intermittently non-conducted P waves not preceded by PR prolongation and not followed by PR shortening
3rd degree heart block is the complete absence of AV conduction. Atrial rate is ~100 bpm, ventricular rate ~40 bpm. 2 rates are independent.
A pulmonary embolism can be caused by a deep vein thromboembolism.
a) Define thrombosis and embolism.
Embolism = blocked vessel caused by a foreign body e.g. a blood clot or an air bubble
Thrombosis = formation of a blood clot inside a blood vessel, this obstructs the flow
What the difference between infarction and ischaemia?
Infraction = death of heart muscles cells due to a reduced or absent blood supply
Ischaemia = restriction in blood supply to tissues causing a shortage of oxygen that is needed for cell function
Renin is released from the kidney in response to decreased renal perfusion (caused by fluid loss and hypovolaemia). This activates the renin-angiotensin-aldosterone system.
List 4 effects of RAAS activation.
- Increased sympathetic activity
- Increased tubular reabsorption of Na and Cl. K+ excretion. H2O retention.
- Increased aldosterone secretion resulting in Na reabsorption in DCT.
- Arteriolar vasoconstriction
- ADH secretion leading to H2O reabsorption
- Overall salt and water retention and an increase in BP.
What is the difference between essential hypertension and secondary hypertension?
Essential hypertension occurs independent of any identifiable cause.
Secondary hypertension occurs as a result of an identifiable cause
Name 3 causes of secondary hypertension outlining a mechanism of action for each
Renal artery stenosis
Chronic renal disease
Primary hyperaldosteronism
Stress
Sleep apnea
Hyper- or hypothyroidism
Pheochromocytoma
Preeclampsia
Aortic coarctation
A 59-year-old male presents in A&E with a crushing chest pain that radiates to the jaw or shoulder for the past 30 minutes. He also feels short of breath and nauseous. O2 is 96% and you carry out an ECG and note that there is ST elevation in leads V3, V4.
What part of the heart is likely to be affected by this MI?
a) Superior
b) Anterior
c) Inferior
d) Left lateral
e) Right lateral
B. V1-4 shows the anterior/septal region of the heart. See diagram below.
This typically shows as an infarction in the left anterior descending (LAD) artery
An ECG is taken on someone suspected of suffering a myocardial infarction. They show abnormalities in leads II, III, and aVF.
Which coronary artery is most likely to be implicated?
a) Septal branches only of the LAD
b) Left anterior descending
c) Left coronary artery
d) Right coronary artery
e) Circumflex artery
D. Right coronary artery
The inferior leads are the ones mentioned in the question.
These stem from the right coronary artery which supplies the right atrium and right ventricle.
A 59-year-old male presents in A&E with a crushing chest pain that radiates to the jaw or shoulder for the past 30 minutes. He also feels short of breath and nauseous. O2 is 96% and you carry out an ECG and note that there is ST elevation in leads V3, V4.
Which would NOT be involved in your acute management of this STEMI?
a) Aspirin
b) Morphine
c) Nitrates
d) Oxygen
e) All of the above options would be indicated
D. Oxygen
MONA – morphine, O2, nitrates, aspirin is the easy way to remember the acute management of an MI however O2 is only indicated if sats are <94%.
A 59-year-old male has recently suffered a myocardial infarction. The junior doctor looking over the medications in his discharge summary and notices a mistake.
Which of the following would not be involved in the management of a previous MI if there was no contra- indications?
a) Aspirin
b) Verapamil
c) Atorvastatin
d) Propranolol
e) Ramipril
B. Verapamil
NICE CKS – the following drugs should be offered following an MI (provided no contra-indications) as the have been shown to reduce the risk of further MI and other cardiovascular events.
* ACE inhibitor – ramipril. Or ARB e.g. candesartan
* Dual antiplatelet therapy e.g. clopidogrel and aspirin
* Beta blocker e.g. propranolol
* Statin e.g. atorvastatin
Calcium channel blockers e.g. verapamil are only given if beta blockers are contra-indicated.
Which of the following is not a chest x-ray finding in chronic heart failure?
a) Pleural effusions
b) Kerley B lines
c) Cardiomegaly
d) Alveolar oedema
e) Dilation prominent in lower lobe vessels
E. Dilation prominent in lower lobe vessels
The way to remember XR findings in HF is ABCDE.
* A – alveolar oedema
* B – Kerley B lines
* C – cardiomegaly
* D – dilation of UPPER lobe vessels
* E – effusions
Upper lobe venous diversion (cephalisation) is caused by an increase in left atrial pressure (receives from pulmonary system) which can occur in pulmonary oedema. Produces a stag sign on a frontal CXR which is produced when atrial pressure rises from 5-10mmHg to 10-15mmHg.
Which of the following may show ST-segment elevation on an ECG?
a) Unstable angina
b) Pritzmetal angina
c) Cardiomyopathy
d) Stable angina
e) NSTEMI
B. Pritzmetal angina
Prinzmetal angina may show ST elevation on an ECG along with STEMI and pericarditis.
- Unstable angina would often be normal or can show ST depression and flat T waves.
- Stable angina will show no changes.
- NSTEMI will show ST depression, deep T wave inversion and pathological Q waves.
A 70-year-old female presents to her GP with a history of progressive shortness of breath with exertion over a period of 4 months with no associated chest pain. She has a past medical history of type 1 diabetes mellitus which is well controlled and currently takes amlodipine 10mg once daily for hypertension. On further questioning, the patient has also mentioned that she is often breathless whilst lying in her bed at night. On physical examination there is mild hepatomegaly and pitting oedema. Which of the following blood investigation is most appropriate at this stage?
a) Urea and electrolytes
b) HbA1c
c) B-type natriuretic peptide
d) Blood Cultures
e) Atrial natriuretic peptide
C. B-type natriuretic peptide
(BNP or NT- proBNP)
The presentation is typical of heart failure and therefore NT-proBNP would be the most appropriate blood test.
BNP is released from the heart (mainly ventricles) in response to stretch, it is a marker for HF.
- U&E are useful but are not diagnostic in this instance.
8 HbA1c looks at glycated Hb over the last 120 days - Blood cultures would be indicated if infection was suspected.
- ANP is released mainly from the atria in response to stretch.
A 25-year-old male attended to A&E due to sudden onset of palpitations in his chest. He described this as his heart was skipping a beat. On examination it was found that the patient had a SVT.
Which of the following would be the most appropriate in the acute management of this patient to return to normal sinus rhythm?
a) Valsalvar manoeuvre
b) Amiodarone
c) Atropine
d) DC cardioversion
e) Adrenaline
A. Valsalvar manoeuvre
The patient in the question has a supra-ventricular tachycardia. SVT are a form of narrow complex tachycardia and therefore the as the patient is young, the first line in this case would be valsalva manoeuvre which is where the nose and mouth is held during forceful expiration to stimulate the vagus nerve to return the heart into sinus rhythm.
- Amiodarone would be used in a broad-complex tachycardia.
- Atropine and adrenaline would be used during an episode of bradycardia to speed the heart up.
- DC cardioversion would not be first line in this management.
A 70-year-old man has a routine check-up at his local GP. He is found to have a new diagnosis of atrial fibrillation after an ECG.
Which of these is a tool that assesses starting anticoagulation in patients with stroke risk due to atrial fibrillation?
a) ABCD2
b) HAS-BLED
c) CHA2DS2-VASc
d) QRISK3
e) Well’s Criteria
C. CHA2DS2-VASc
Screening tools such as ABCD2, QRISK3 and FRAX are common topic to come up in exams. Knowing which tools do what is more important than knowing each factor that is used to calculate a score. The CHA2-DS2-VASc or just CHADS2 score both estimate stroke risk in patients with AF.
*ABCD2 – estimates risk of stroke after a suspected TIA.
*HAS-BLED – estimates risk of bleeding on patients on anticoagulation
*QRISK3 – estimates risk of developing a heart attack or stroke in next 10 years.
*Well’s criteria – estimates risk of Pulmonary Embolism in clinical presentation.
A 76-year-old woman present to her GP with shortness of breath on exertion. She felt it has been gradually worsening over the past 6-months. She denies any chest pain but says that she wakes up in the middle of the night gasping for breath. Her legs are oedematous on examination.
Which of these investigations is first line for her diagnosis?
a) CT Chest
b) B-Natriuretic peptide
c) Ankle brachial pressure index (ABPI)
d) Echocardiogram
e) ECG
B. B-Natriuretic peptide
This patient has a likely diagnosis of with key factors such as shortness of breath on exertion, paroxysmal nocturnal dyspnoea, and peripheral oedema.
An ECG, echocardiogram and CXR are all good investigations, but you should remember a BNP or NT- proBNP as the first line investigation, especially in primary care.
A 54-year-old woman presents with shortness of breath on exertion, fatigue, and palpitations. On examination, her jugular venous pressure is elevated, and a pan-systolic, high-pitched “whistling” murmur is heard. The murmur radiates to the left axilla.
What is the likely cause of the murmur?
a) Mitral regurgitation
b) Mitral stenosis
c) Aortic stenosis
d) Aortic regurgitation
e) Hypertrophic cardiomyopathy
a) Mitral regurgitation
- aortic stenosis which causes an ejection-systolic murmur
- and mitral regurgitation which causes a pan-systolic murmur
- aortic regurgitation which causes an early diastolic murmur
- mitral stenosis which causes a mid-diastolic murmur.
A 63-year-old black man presents for a check-up at his GP. He has no significant past medical history but admits to a poor diet. His blood pressure is 153/95 mmHg and the GP wants to start medical management.
Which of the following medications is most appropriate?
a) Amlodipine
b) Ramipril
c) Bisoprolol
d) Candesartan
e) Indapamide
A) Amlodipine
Getting familiar with the NICE guidelines is important for your 2a exams. Hypertension medical management is a common topic, because of how common hypertension is and the slight complexity with two different patient groups.
If a patient is under 55 or has type 2 diabetes an ACEi or ARB should be started.
If a patient is black or over 55 then a CCB such as amlodipine should be started.
What is the most appropriate diagnostic investigation for aortic stenosis?
a) Chest X-ray
b) ECG
c) Echocardiogram
d) Auscultation
e) Exercise tolerance test
C) Echocardiogram
- Aortic stenosis is the obstruction of blood flow across the aortic valve due to aortic calcification; presents with SoB with exertion, angina, or syncope. Characteristic murmur is systolic mid to late peaking with a crescendo-decrescendo pattern, radiation to the carotids. Doppler echo is essential for diagnosis and will show a pressure gradient across the stenotic aortic valve. Valve replacement is the treatment.
- CXR is unlikely to reveal much, calcification may be visible in larger arteries. LV hypertrophy may occur due to increased pressure required to pump blood through aortic valve.
- ECG is used in the diagnosis of aortic stenosis. Demonstrates LV hypertrophy and absent Q waves, AV block, BBB. In AS patients 90% of the ECGs recorded show some abnormality.
- Trans-thoracic echo (including Doppler) is the best test for the initial diagnosis and subsequent evaluation of AS. The sensitivity and specificity of the test are high. Elevated aortic pressure gradient; measurement of valve area and LV ejection fraction.
- Exercise tolerance test is and ECG that is recorded whilst you are exercising. Used to test for coronary heart disease and angina.
- Auscultation is one method of detecting heart murmurs but is not the most appropriate diagnostic investigation.
A 82-year-old woman came to clinic to receive her COVID-19 vaccine. Shortly after its administration she felt short of breath and a rash started developing all over her body. She collapsed a minute later.
What is the first medication which should be administered?
a) Salbutamol
b) High flow oxygen
c) Adrenaline
d) IV fluids
e) Chlorpheniramine
C) Adrenaline
The resuscitation council’s algorithm for anaphylaxis says: 1. ABCDE 2. Check for obvious potential diagnosis 3. Call for help 4. Adrenaline 5. Establish airway / high flow O2 / IV fluid challenge / chlorphenamine / hydrocortisone
Adrenaline is the first medication to be given, opens airway and blood vessels helping to reverse the effects of anaphylaxis. 500 micrograms (0.5 mL) of 1:1000 IM.
- Chlorpheniramine is an antihistamine which takes 15-20 mins to work.
- Histamine release is the cause of anaphylaxis so this helps reverse the effects.
- Hydrocortisone is a corticosteroid, its benefit in anaphylaxis is still unproven but aims to stop a biphasic reaction, reduce the symptom reoccurrence, and wheezing.
- Intravenous fluids are given as large volumes of fluid may leak from the patient’s circulation. Signs of shock, vasodilation and a low BP.
- Salbutamol is a beta 2 adrenergic agonist which causes bronchodilation helping the patient to breathe during anaphylaxis.
A 45-year-old male recently had a coronary artery bypass graft (CABG) after suffering an myocardial infarction 2 weeks ago. He now has a sharp pain in his chest which is radiating to his left shoulder and is worse when he takes a deep breath in. He says the pain is lessened when he is sat forward compared to when he is lying flat. On examination, his vital signs are normal and there are no murmurs on auscultation. His troponin blood test comes back normal.
What is the most likely diagnosis?
a) Pericarditis
b) Interstitial lung disease
c) Endocarditis
d) Myocardial infarction
e) Aortic dissection
A) Pericarditis
Pericarditis – this is inflammation of the membrane that surrounds the heart, movement of the heart causes pain. It causes pleuritic pain which is classically sharp and worse on inspiration. Pericarditis pain is relieved when leaning forward. It can occur after a CABG as the tissue has been damaged, another cause is Dressler Syndrome whereby pericarditis occurs as a complication of an MI 2-3 weeks afterwards. They may have a fever, this is not present in this description
- Endocarditis – inflammation of heart valves typically caused by staph or streptococci. History is usually IV drug user or previous dental surgery. The tricuspid valve as this is the first valve blood passes from the systemic circulation so is affected after systemic infection. The patient will have a fever, murmur over the affected valve, numerous signs on examination – roth spots, splinter haemorrhages, Janeway lesions, Osler’s nodes.
- Myocardial infarction – pain wouldn’t typically change depending on position, though it does radiate to the left shoulder which is typical. This option can be ruled out as the troponin blood test that detects recent MIs is negative.
- Aortic dissection – separation of the media lamina resulting in blood entering the wall of the aorta. Presentation is classically acute chest pain radiating to the back between the scapulae. Physical examination will show unequal blood pressure in arms.
A 75-year-old man presents to his GP with recurrent, intermittent, sudden-onset chest pain and shortness of breath. He reports that he often tires easily climbing the stairs in his house. It has now worsened, and he experiences the pain more often even at rest. Past medical history is significant for hypertension and type II diabetes. An ECG demonstrates mild ST-segment depressions in V1-V2. Cardiac troponins are not elevated.
What is the most likely diagnosis?
a) NSTEMI
b) STEMI
c) Prinzmetal angina
d) Stable angina
e) Unstable angina
E) Unstable angina
Unstable angina is incomplete coronary artery occlusion usually by a thrombus, atherosclerotic plaque has ruptured which causes a clot to form and occlude the artery. The pain now occurs at rest and worsens on exercise. ST segment depressions and T wave inversions. No elevation of biomarkers.
- Stable angina is typically secondary to atherosclerosis partially occluding the coronary artery. Pain occurs on exercise when O2 demand is higher. This is relieved with nitrates and rest. May show ST depressions.
- STEMI – full width infarction of the myocardial tissue caused by occlusion of a coronary artery. ST elevation, peaked T waves, Q waves. Biomarkers are positive.
- NSTEMI – partial infarction of the myocardial tissue caused by occlusion of a coronary artery. ST depression and T wave inversion. Biomarkers are positive.
Prinzmetal angina is a spasm in the coronary artery, it shows a dramatic ST elevation during episodes. Relieved with nitrates. Occurs unrelated to activity levels.
A 57-year-old man, who has recently undergone prosthetic valve surgery, presents with a 5-day history of high fever and night sweats. He admits to infrequent IV heroin use. On examination, you notice some dark red lines under his fingernails and some painful red spots over his hands and soles of his feet.
What is the most likely diagnosis?
A. Pericarditis
B. Systemic Lupus Erythematosus (SLE)
C. Infective Endocarditis
D. Rheumatic heart disease
E. Henoch-Schonlein Purpura
C. Infective Endocarditis is correct - there are risk factors of prosthetic valves and IV drug use, alongside splinter haemorrhages and Osler’s nodes.
A. Pericarditis typically presents with a history of a viral infection, with acute onset chest pain that is characteristically relieved by leaning forward.
B. SLE can present with splinter haemorrhages, but Osler’s nodes are not characteristic
D. Rheumatic heart disease does present with subcutaneous nodules, but also alongside arthritis, chorea and a specific skin rash. It tends to present in children/younger adults.
E.HSP typically presents with a red/purple rash up the back of the legs and buttocks.
A 75-year-old man presents to A&E with sharp chest pain, which is worse when he lies down, but improves when he leans forward. He has been feeling under the weather for the past week with a viral chest infection. You suspect pericarditis, and are concerned about the possible signs and complications that could develop.
Which of the following is the correct definition of cardiac tamponade?
A. An exaggerated drop in blood pressure of over 10mmHg on inspiration
B. Accumulation of a small amount of fluid in the pericardial cavity that does not
reduce cardiac function
C. A paradoxical rise in Jugular Venous Pressure on inspiration
D. Persistent inflammation of the pericardium that results in fibrosis, limiting diastolic filling of the heart
E. Accumulation of a large amount of fluid in the pericardial cavity that compresses the heart and reduces cardiac function
E. Accumulation of a large amount of fluid in the pericardial cavity that compresses the heart and reduces cardiac function - This is the correct definition of cardiac tamponade.
A. This is the definition of Pulsus Paradoxus, which is a sign of cardiac tamponade
B. This is the definition of Pericardial Effusion - basically a less extreme version of cardiac tamponade
C. This is the definition of Kussmaul’s sign, which is a sign of cardiac tamponade
D. This is the definition of constrictive pericarditis, which can only be distinguished from cardiac tamponade by cardiac catheterisation (present the same clinically as they both restrict filling of the heart)
Which of the following features is not a feature of the Tetralogy of Fallot?
A. Overriding aorta
B. Left ventricular hypertrophy
C. Ventricular Septal Defect
D. Pulmonary artery stenosis
E. Right ventricular hypertrophy
B. The four features of the tetralogy of Fallot are an overriding aorta, VSD, pulmonary artery stenosis and right ventricular hypertrophy. RV hypertrophy occurs in response to pulmonary artery stenosis, to try and maintain cardiac output. This means there is a right to left shunt through the VSD, resulting in cyanosis due to deoxygenated blood entering the oxygenated circulation. Left ventricular hypertrophy is not a feature.
An 86-year-old woman has long-standing ischaemic heart disease, which has recently progressed to left-sided heart failure.
Which of these features would you not expect to see in left-sided heart failure?
A. Ascites
B. Dyspnoea
C. Reduced ejection fraction
D. Orthopnoea
E. Normal JVP
A. Ascites is a feature of right-sided heart failure, as it causes congestion in the systemic system, resulting in accumulation of fluid
- B. You would expect dyspnoea (difficulty breathing) in left-sided heart failure, as it causes pulmonary congestion
- C. A reduced ejection fraction occurs when the systolic function of the LV is reduced, meaning the volume of blood pumped out of the heart is less than the volume of blood that enters the LV during diastole. There isn’t always a reduced ejection fraction in left-sided heart failure, as the cause may be diastolic, meaning the volume moving in and out of the heart would be the same.
- D. Orthopnoea (difficulty breathing when lying down) is a classic symptom of heart failure. The severity can be measured by asking the patient how many pillows they use to sleep with.
- E. JVP may be raised in right-sided heart failure, as it occurs when there is systemic congestion, due to raised venous pressure. It is not raised in left-sided heart failure.
A 68-year-old man presents with a two-week history of shortness of breath when lying down. He is worried because he has been waking up suddenly in the middle of the night feeling like he cannot breathe. You suspect the patient has heart failure, and want to order a blood test to support your diagnosis.
Which hormone levels should you test, and where is this released?
A. Brain Natriuretic Peptide (BNP), which is released from the hypothalamus
B. Atrial Natriuretic Peptide (ANP), which is released from the hypothalamus
C. Brain Natriuretic Peptide (BNP), which is released from the ventricles
D. Atrial Natriuretic Peptide (ANP), which is released from the atria
E. Brain NatriureticPeptide(BNP),which is released from the posterior pituitary gland
C. Brain Natriuretic Peptide (BNP), which is released from the ventricles
BNP is released by the ventricles in response to overstretching of the walls of the heart (i.e. when heart failure leads to fluid overload). Raised levels support a diagnosis of heart failure, and normal/low levels exclude heart failure as a diagnosis. ANP is released by the atria, but this is not measured in the diagnosis of heart failure.
A 55-year-old man with longstanding hypertension and diabetes presents to A&E with a 3-hour history of excruciating chest pain that radiates to his left shoulder. He appears pale and sweaty, and has worsening dyspnoea despite sitting down. You perform an ECG, which shows ST depression.
What is the most likely diagnosis?
A. Stable angina
B. STEMI
C. Decubitus angina
D. NSTEMI
E. Unstable angina
D. NSTEMI - this is correct, as chest pain radiating to the left shoulder with dyspnoea are classic symptoms of an MI. This is confirmed with the ECG, which shows ST depression.
A. Stable angina only occurs on exertion, and improves when the person stops exerting themselves, unlike in this case.
B. The clinical features align with a diagnosis of a STEMI, however this is excluded due to ST depression on the ECG, and a STEMI has ST elevation
C. Decubitus angina is a type of angina that occurs when the person lies down
E. Unstable angina is an onset of chest pain at rest, but you would not expect other features such as going pale or the pain radiating to the shoulder. A more classic presentation would be someone who used to get chest pain on exertion who is starting to get episodes of pain when they are sitting still, rather than such an acute presentation.
A 39-year-old woman presents to A&E with tachycardia, tachypnoea and cool peripheries. Her pulse is weak and she is very confused. You suspect she is going into hypovolaemic shock.
Which of the following is not a possible cause of hypovolaemic shock?
A. Ruptured aortic aneurysm
B. Severe burns
C. Pyelonephritis leading to urosepsis
D. Vomiting
E. Trauma to the leg causing bleeding
C. Pyelonephritis leading to urosepsis, Urosepsis can lead to septic shock, but this is not a cause of hypovolaemic shock as there is no blood/fluid loss
A. A ruptured aortic aneurysm has a mortality rate of 80% due to the rapid onset of hypovolaemic shock from internal blood loss
B. Severe burns result in loss of fluid, meaning the circulating volume is depleted
D. Hypovolaemic shock is caused by anything that results in a depleted circulating volume, therefore vomiting is a possible cause as it can lead to dehydration
E. Bleeding from the leg will reduce circulating volume so can cause hypovolaemia
A patient presents to A&E with a myocardial infarction. The consultant performs an ECG, which shows ST-elevation in leads II, III and avF.
Which coronary artery is occluded?
A. Left Circumflex Artery
B. Left Anterior Descending Artery C. Left Coronary Artery
D. Right Marginal artery
E. Right Coronary Artery
E. Right Coronary Artery
The Right Coronary Artery supplies the inferior surface of the heart, which corresponds to leads II, III and aVF.
Leads I, v5, v6 and aVL = Lateral = Circumflex Leads v3 and v4 = Anterior = LAD
A 42-year-old woman comes to the GP with concerns about her atrial fibrillation. You are unsure if she needs anticoagulation medication to prevent a stroke, so decide to use a risk score tool to guide your decision.
Which risk score is most appropriate?
A. Wells score
B. CHAD2DS2-Vasc score
C. FRAX score
D. ABCD2 score
E. HAS-BLEDscore
B. CHAD2DS2-Vasc score
CHAD2DS2-Vasc score is used to calculate the risk of having a stroke in patients with atrial fibrillation.
- HAS-BLED score (E) calculates the risk of having a major bleed within 1 year in patients with atrial fibrillation.
- Wells score (A) is used to calculate the risk of venous thromboembolism.
- FRAX score (C) is used to calculate the risk of having a fracture within the next 10 years.
- ABCD2 score (D) is used to calculate the risk of having a stroke after a TIA.
A 56-year-old man presents to hospital feeling light-headed and dizzy, after he ‘felt his heart race’ earlier this morning. He has a history of diabetes and smokes 20 cigarettes a day. You decide to perform an ECG, which shows increasingly prolonged PR intervals, followed by a drop in a QRS complex.
What is the most likely diagnosis?
A. Left bundle branch block
B. Right bundle branch block
C. Mobitz type 1 second-degree heart block
D. Mobitz type 2 second-degree heart block
E. Third-degree heart block
C. Mobitz type 1 second-degree heart block
The most likely diagnosis is Mobitz type 1 second-degree heart block (C). This is due to the increasingly long PR intervals and drop in QRS complexes, giving a characteristic Wenckebach pattern.
- Mobitz type 2 (D) presents similarly with a drop in QRS complexes, but the PR intervals remain a constant length.
- Third-degree heart block (E) presents with no association between atrial and ventricular contraction.
A 68 year old man presents to Accident and Emergency with severe chest pain. He has a past medical history of obesity, hypertension and has smoked since the age of 17. The pain is described as coming on suddenly at rest and tearing in nature radiating to his back as well as migrating down.
What is the most likely diagnosis?
A. Aortic dissection
B. Anterior Myocardial Infarction
C. Angina
D. Costochondritis
E. Gastroesophageal reflux
A. Aortic dissection
This stem gives a classic history of Aortic dissection.
- An Anterior Myocardial Infarction typically causes a crushing central chest pain radiating to the neck/left arm not typically down the body.
- Angina is typically associated with pain on exertion and relieved by rest.
- The pain in Costochondritis is typically an achy pain felt towards the front of the chest.
- Gastroesophageal reflux is typically a retrosternal burning chest pain often related to meals, lying down or straining.
A 19 year old woman presents to her GP as she has been experiencing episodes of her heart racing and feeling light headed needing to sit down. An ECG is performed on which the doctor notices an abnormality associated with Wolff-parkinson-white syndrome.
Which ECG abnormality is most associated with Wolff-parkinson-white syndrome?
A. Delta wave
B. Convex ST elevation
C. Saddle ST elevation
D. Bifid p wave
E. Increase PR interval
A. Delta wave
a Delta wave is caused by the accessory conduction pathway in WPW.
- Increased PR interval is wrong as the PR interval should decrease in WPW.
- Convex ST elevation indicates infarction.
- Saddle ST elevation indicates pericarditis.
- Bifid p wave indicates left martial enlargement.
A 54 year old lady is brought into Accident and Emergency by her husband after a collapse while they were out hiking in which she cut her arm. The loss of consciousness was brief and she recovered quickly.
On further questioning she reveals that she has had many episodes like this before but this is the first time she has injured herself and subsequently presented to hospital. Her past medical history is unremarkable except for suffering from rheumatic fever as a child.
On examination it is noted she has a slow rising weak pulse before moving on to auscultation.
Which clinical finding would you most likely find upon auscultation?
A. Constant machinery murmur
B. Ejection systolic murmur
C. Pansystolic murmur
D. Parasternal heaves
E. Rumbling mid diastolic murmur
B. Ejection systolic murmur
]given the typical Aortic stenosis history an Ejection systolic murmur is most likely.
- Pansystolic murmur would indicate mitral regurgitation.
- Parasternal heaves, although a possible sign in aortic stenosis this sign is picked up on palpation and auscultation.
- A Rumbling mid diastolic murmur indicates Mitral stenosis.
- A Constant machinery murmur indicates a patent ductus arteriosus.
Foetal circulation allows oxygenated maternal blood to circulate around the fetus and bypass the lungs. To allow the circulation to bypass the lungs there is a vessel that connects the pulmonary arteries to the aorta.
What is the name of this structure before it closes?
A. Ductus arteriosus
B. Ductus venosus (allows blood to by pass the liver)
C. Ligamentum arteriosum
D. Ligamentum venosum
E. Umbilical artery
A- this is the Ductus arteriosus being described, the remnant of this is the Ligamentum arteriosum in adults.
- The Ductus venosus allows blood to bypass the liver, the remnant of which is the Ligamentum venosum in adults.
- The umbilical arteries, found in the abdominal and pelvic regions, supply deoxygenated blood from the fetus to the placenta.
A 64 year old man presents to his GP three weeks after he had a myocardial infarction. He is concerned as he has been having central chest pain again but says this time it is different. This time the pain is worse on breathing in or lying flat and is relieved by leaning forward. On examination he has a fever and a friction rub can be heard on auscultation.
Which of the following is most likely the cause of this presentation?
A. Angina
B. Dressler’s syndrome
C. Infective endocarditis
D. Myocardial infarction
E. Pneumonia
B. Dressler’s syndrome develops 2 to 10 weeks post MI. It is thought that myocardial injury stimulates the formation of antibodies against the heart muscle. Classic symptoms include fever, chest pain and plural pain with a pericardial rub. Treatment involves aspirin, NSAID or steroids.
Which of the following is not a typical finding seen in heart failure on a chest radiograph?
A. Alveolar edema
B. Cardiomegaly
C. Dilated prominent lower lobe vessels
D. Interstitial edema
E. Pleural effusion
C- Dilated prominent upper lobe vessels are seen in heart failure not lower lobe vessels.
The ABCDE mnemonic can help remember the x-ray findings in heart failure.
Alveolar oedema, Kerley B lines (Interstitial oedema) Cardiomegaly, Dilated prominent upper lobe vessels and Pleural effusion
A 54 year old intravenous drug user presents to Accident and Emergency with a 8 day history of fever and fatigue. On examination he has poor dental hygiene and many positive signs including a new murmur.
Which of these findings would you most likely see on fundoscopy of the eye?
A. Clubbing
B. Hederden’s nodes
C. Janeway’s lesions
D. Roth spots
E. Splinter hemorrhages
D. Roth spots (retinal haemorrhage with pale centers) are the only sign in the eye in this list the rest are signs that would be found on the hand. Although Hederden’s nodes are seen on the hands, these are seen in Osteoarthritis not endocarditis (Osler’s nodes are seen in endocarditis).