2023-4 IMP mocks 1-4 Flashcards
Answers are uptodate and defo correct
A 49 year old man has 3 days of cough and fever. He undergoes haemodialysis three times per week. His temperature is 38.6°C, pulse rate 90 bpm, BP 122/80 mmHg, respiratory rate 30 breaths per minute and oxygen saturation 95% breathing 15 L/min oxygen via a non-rebreather mask. His JVP is 4 cm above the sternal angle. He has inspiratory crackles in the right mid and lower zone and left upper zone. His blood capillary glucose is 12 mmol/L. Investigations: Sodium 131 mmol/L (135–146) Potassium 5.7 mmol/L (3.5–5.3) Urea 16.7 mmol/L (2.5–7.8) Creatinine 327 μmol/L (60–120) Chext X-ray: see image
Which is the most appropriate initial treatment?
A. Haemodialysis
B. Intravenous 10 mL 10% calcium gluconate
C. Intravenous 1000 mL 0.9% sodium chloride over 1 h
D. Intravenous co-amoxiclav and clarithromycin
E. Intravenous furosemide
IV Co-amo and clarithro -> This patient is suffereing from a severe pneumonia and so needs to be treated accordingly. The hyponatraemia may be suggesting a legionella infection. Therefore the addition of the clarith
A 28 year old man is investigated for polyuria and polydipsia. He has bipolar disorder for which he has taken lithium for 2 years. Initial investigations: Sodium 145 mmol/L (135–146) Potassium 3.9 mmol/L (3.5–5.3) Serum osmolality 296 mOsmol/kg (285–295) Urinary osmolality 356 mosmol/kg (100–1000) Fasting glucose 5.8 mmol/L (3.0–6.0) Serum lithium 0.75 mmol/L (0.5–1.2)
Which is the most useful diagnostic investigation?
A. 24-h urinary cortisol test
B. Glucose tolerance test
C. Serum corrected calcium
D. Short Synacthen test
E. Water deprivation test
Serum corrected Calcium -> Lithium can cause Diabetes insipidus but it can also cause Hyperparathyroidism that can cause Hypercalcaeima that can lead to the symptoms described.
A 92 year old woman has severe neck, chest and back pain and tingling in her left hand following a mechanical fall. She has bruising around her right eye. Investigations: CT scan of head: no intracranial injury or bleed, mild small vessel disease; right orbital fracture Chest X-ray: lung fields clear; left sided 4th rib fracture Full blood count and clotting screen are normal.
Which is the most appropriate next investigation?
A. Cervical spine X-ray
B. CT angiography
C. CT scan of chest
D. CT scan of neck
E. MR scan of brain
CT scan of neck -> The hx and exam is suggetive of a Cervical spine fracture. This is best tested with a CT scan of the neck.
Severe neck pain + tingling
A 24 year old woman attends her GP with 2 months of intermittent palpitations. She describes the episodes as feeling as if the heart stops for a second followed by a pounding sensation. She reports episodes two to three times per week lasting 5–10 minutes, most commonly when she is going to sleep. She is otherwise well. She has been taking the combined oral contraceptive pill for 2 years. Her pulse rate is 68 bpm and BP 108/71 mmHg. Her heart sounds are normal. Investigations: ECG: sinus rhythm, rate 70 bpm.
Which is the most likely diagnosis?
A. Paroxysmal atrial fibrillation
B. Sinus arrhythmia
C. Sinus tachycardia
D. Supraventricular premature beats
E. Supraventricular tachycardia
**Supraventricular premature beats ** -> The singular pounding sensation is suggestive of the diagnosis.
A 52 year old man has 3 months of fatigue. He has a history of ulcerative colitis and takes mesalazine. He drinks 20 units of alcohol per week. His temperature is 36.8°C and pulse rate 80 bpm. He has 3 cm hepatomegaly. Investigations: Albumin 36 g/L (35–50) ALT 65 IU/L (10–50) ALP 580 IU/L (25–115) Bilirubin 18 μmol/L (<17) γGT 230 IU/L (9–40) Ultrasound scan of abdomen: bile duct wall thickening and dilatation
Which is the most appropriate next diagnostic investigation?
A. CT scan of abdomen
B. Endoscopic retrograde cholangiopancreatography
C. Liver biopsy
D. MR cholangiopancreatography
E. Percutaneous transhepatic cholangiography
MR Cholangiopancreatography -> PSC gold standard investigation
It has a beaded appearance
A 60 year old woman has 6 weeks of a cough productive of blood streaked sputum. Investigations: CT scan of chest: mass in left lower lobe Needle biopsy: nuclei that are enlarged, hyperchromatic and pleomorphic.
Which is the most likely diagnosis?
A. Adenoma
B. Carcinoma
C. Hamartoma
D. Sarcoidosis
E. Tuberculosis
Carcinoma -> Nuclear enlargement, hyperchromasia and pleomorphism are all suggestive of a carcinoma
A 16 year old girl presents to the Emergency Department after an episode of loss of consciousness following a fall. She had consumed an excessive amount of alcohol at a party before the fall. She has a dirty scalp wound and cannot remember recent events. Her pulse rate is 68 bpm, BP 110/80 mmHg and oxygen saturation 98% breathing air. She opens her eyes to command and is confused. Her capillary blood glucose is 6.0 mmol/L. Her wound is cleaned and sutured.
Which is the most appropriate immediate management plan?
A. Admit and observe for 24 h (when?)
B. CT scan of head (immediate or within 8hrs?)
C. Discharge with head injury instructions
D. Refer to neurosurgeon
E. X-ray of skull
CT Head -> The indications for a CT head are the following…. If retrograde amnesia,otherwise admit and observe
Immediate:
* a GCS score of 12 or less on initial assessment in the emergency department
* a GCS score of less than 15 at 2 hours after the injury on assessment in the emergency pdepartment
* suspected open or depressed skull fracture
* any sign of basal skull fracture (haemotympanum, ‘panda’ eyes, cerebrospinal fluid leakage from the ear or nose, Battle’s sign)
* post-traumatic seizure
* focal neurological deficit
* more than 1 episode of vomiting.
within 8hrs:
* age 65 or over
* any current bleeding or clotting disorders
* dangerous mechanism of injury (a pedestrian or cyclist struck by a motor vehicle, an occupant ejected from a motor vehicle or a fall from a height of more than 1 m or 5 stairs)
* more than 30 minutes’ retrograde amnesia of events immediately before the head injury.
A 52 year old man visits his GP for health screening. He is well. His pulse rate is 80 bpm and irregular, and BP 128/84 mmHg. Investigations: Sodium 136 mmol/L (135–146) Potassium 3.9 mmol/L (3.5–5.3) Urea 4.9 mmol/L (2.5–7.8) Creatinine 80 μmol/L (60–120) HbA1c 40 mmol/mol (20–42) Thyroid function tests are normal. ECG shows atrial fibrillation, 76 bpm.
Which is the most appropriate treatment?
A. Apixaban
B. Aspirin
C. Diltiazem hydrochloride
D. No treatment
E. Warfarin sodium
No treatment -> CHADSVASc = 0 therefore there is no need to anticoagulate.
In terms of rate or rhythm control. This meets the criteria of rate control however as at rest the HR is less than 90bpm the rate control medication is not needed.
An 80 year old man presents to the Emergency Department with 2 hours of epistaxis that has not stopped despite compression. He has a history of hypertension. A bleeding site is visible in the anterior nasal cavity. His BP is 160/95 mmHg.
Which is the most appropriate initial management option? Why not other options.
A. Anterior pack
B. Antihypertensive medication
C. Cautery
D. Cryotherapy
E. Ice pack
Cautery -> Cautery is the way to treate a accessible site .
Anterior pack is used for profuse bleeding with sites that are difficult to localise.
Antihypertensive may help prophylactically but not with the current bleed
Cryotherapy and Ice packs are of little advantage and secondary…
A 23 year old man attends the sexual health clinic with a painful swelling in his groin and pain when opening his bowels. He had unprotected anal sex with a new male partner 4 weeks ago. He has a perianal ulcer and tender inguinal lymphadenopathy.
Which is the most likely diagnosis?
A. Genital herpes
B. Gonorrhoea
C. HIV seroconversion
D. Lymphogranuloma venereum
E. Secondary syphilis
Lymphogranuloma venereum -> Proctitis (pain with bowel can be suggestive of prostitis) and lymphadenopathy make LGV the most likely
This is caused by Chlamydia trachomatis.
This is not the same as chlamydia just caused by the same organism. RF inc MSM
A 25 year old man presents to the Emergency Department after vomiting a large quantity of blood. At endoscopy, a deep ulcer is identified in the posterior wall at the junction of the first and second parts of the duodenum. There is a bleeding vessel in the base.
From which artery is the bleeding most likely to be arising?
A. Gastroduodenal artery
B. Left gastric artery
C. Short gastric artery
D. Splenic artery
E. Superior mesenteric artery
Gastroduodenal Artery
A 27 year old woman has a long history of irregular menstruation. She does not take any medication. Her BMI is 29.4 kg/m2. Investigations:
LH (pre-menopausal female) 15 U/L (follicular) (1–11)
FSH 6 U/L (follicular) (2–8)
Testosterone 3.5 nmol/L (0.2–2.9)
Cortisol post 1 mg dexamethasone 40 nmol/L (<50)
Prolactin 425 U/L (100–500)
Which is the most likely diagnosis?
A. Androgen secreting tumour
B. Cushing’s syndrome
C. Polycystic ovary syndrome
D. Premature ovarian failure
E. Prolactinoma
PCOS -> There are olgomenohrrea and there is signs of high testosterone… Increased LH to FSH ratio…
A 75 year old man is admitted with weakness in his legs. He has a squamous cell lung cancer treated by radiotherapy 18 months previously. He is cachetic. He has 4 out of 5 power in hip flexion and knee flexion bilaterally. Sensation and reflexes are normal, and sphincter function is preserved. His BMI is 17 kg/m2. MR scan of spine shows destructive bony lesions of T12 and L2–L4 vertebral body.
Which treatment is most appropriate to preserve neurological function?
A. Chemotherapy
B. External beam radiotherapy
C. Intravenous bisphosphonates
D. Radiation brachytherapy
E. Surgical decompression of the spinal cord
External beam Radiotherapy -> This is the next step in management post Dexamethasone. Surgical decompression cannot be done as the patient is to unwell and mets mean that there are multiple sites as well, however can be an option a Spinal cord compression patient,.
A 26 year old woman has 12 months of back pain, located in the low lumbosacral region. She has intermittent bilateral thigh pain. The back pain disturbs her sleep. The pain is improved by activity but not relieved by resting. She finds it difficult to bend down during the day to pick things up from the floor.
Which clinical feature is most specific for inflammatory back pain?
A. Improvement with activity
B. Nocturnal pain
C. Radiation to leg
D. Stiffness during the day
E. Young age
Inflammatory pain -> Improvement with activity is the most specific
Inflammatory pain can wake the patiens up in early hours of the morning
Morning stiffness is specific to inflammatory pain
A 68 year old man has a swollen tender knee for 3 days and cannot weight bear. He has had previous episodes of big toe swelling. He has a history of chronic kidney disease stage 4.
Investigations:
Fluid analysis of knee aspirate:
White cell count 55 000/mL, 95% neutrophils
Gram stain negative
Copious 10 μm intracellular needle shaped crystals
Which is the best initial treatment for his acute knee pain and swelling?
A. Arthroscopic joint washout
B. Intravenous flucloxacillin
C. Oral allopurinol
D. Oral naproxen
E. Oral prednisolone
prednisolone -> Dumbass the pt is CKD stage 4 so NSAIDs should be avoided as such the next best option is Steroids…
Negatively bifringent needle shaped crystals are gout
Pseudo gout is positively bifringent rhomboid crystals
An 18 year old man is in the intensive care unit with septic shock as a result of a compound fracture of his leg. His urine output has been <30 mL for the past 2 hours. His pulse rate is 125 bpm, BP 85/40 mmHg and JVP 4 cm above the sternal angle. There are basal crackles on auscultation of the chest. Investigations: ECG shows sinus rhythm, 125 bpm. He is being treated with intravenous 0.9% sodium chloride at 125 mL/h and antibiotics.
Which is the most appropriate additional intravenous treatment?
A. 500 mL 0.9% sodium chloride over 15 min
B. 500 mL Hartmann’s solution over 15 min
C. Dopamine hydrochloride
D. Furosemide
E. Noradrenaline/norepinephrine
Noradrenaline -> th vasopressors are used rn because of the fact that this was a patient who has been pumped with liquids as they are a septic and had been treatedl. Additionally their JVP is normal and already on an infusion. As such more fluids may be overloading them and so vasoconstriction is needed with the use of vasopressors.
A 34 year old man has pain in his right shoulder and upper arm for 6 weeks that worsens when elevating his arm above his head. He does not recall any injury. There is no deformity, tenderness or reduced range of movement. There is pain on abduction of the right shoulder that is worse with the arm in internal rotation and when abduction is resisted. He is treated with ibuprofen.
Which is the most appropriate next step in management?
A. MR scan of shoulder
B. Refer for orthopaedic opinion
C. Refer for physiotherapy
D. Ultrasound scan of shoulder
E. X-ray of shoulder
Physiotherapy -> This is a diagnosis of tendinopathy of the right supraspinatus…
No further investigations are needed. Just need s home excercises and physiotherpay.
A 65 year old woman with advanced carcinoma of the breast with cerebral and liver metastases is rapidly deteriorating and is recognised to be dying. She becomes confused and agitated.
Which is the most suitable initial treatment?
A. Diamorphine hydrochloride
B. Glycopyrronium
C. Hyoscine hydrobromide
D. Midazolam
E. Mirtazapine
Midazolam -> Terminal restness is just treated with Midaxolam…
The stem choooses to highlight the fact that this patient is deterioting and it is due to a terminal illness suggesting that they have ruled out other causes.
A 80 year old man has progressive memory loss over 2 years. He scores 20/30 on the Montreal Cognitive Assessment, and he requires an MR scan of brain.
In which part of the brain are changes most likely to be found in early Alzheimer’s disease?
A. Basal ganglia
B. Frontal lobe
C. Medulla oblongata
D. Parietal lobe
E. Temporal lobe
Temporal Lobe-> It affects the hippocampus and that is found in the temporal lobe.
A 43 year old woman is admitted to hospital with an overdose of amitriptyline hydrochloride taken 4 hours previously. She has a history of chronic headache. Her pulse rate is 105 bpm and BP 95/40 mmHg. She is drowsy and her pupils are dilated. ECG shows significant QRS prolongation.
Which is the most appropriate immediate management option?
A. Activated charcoal
B. Intravenous amiodarone hydrochloride
C. Intravenous atropine sulfate
D. Intravenous magnesium
E. Intravenous sodium bicarbonate
IV sodium Bicarb -> This is the management of arrythmias in patients with TCA overdose/
A 74 year old man has progressively worsening muscle aches that are now causing him to struggle to get up from a chair or raise his arms above his head. He has a history of oesophageal cancer treated surgically and ischaemic heart disease. He is taking bisoprolol, clopidogrel, ramipril and simvastatin. Investigations: Haemoglobin 125 g/L (130–175) White cell count 7.8 × 109/L (3.0–10.0) Platelets 391 × 109/L (150–400) Erythrocyte sedimentation rate 105 mm/hr (<20)
Which is the most appropriate therapeutic change?
A. Start co-codamol
B. Start ibuprofen
C. Start prednisolone
D. Stop bisoprolol
E. Stop simvastatin
Start prednisolone -> This patient has Polymyalgia rheumatica.
They often present with pain that means they struggle from getting up from chair or bed in the moring.There is also a raised ESR.
Their Creatinine kinase and EMG will be normal!!
A 61 year old woman is admitted with 2 days of confusion. She has a history of hypertension and takes nifedipine. She smokes 20 cigarettes per day. She is confused but has no focal neurological deficit. Her pulse rate is 75 bpm, BP 139/87 mmHg and JVP 2 cm above the sternal angle. Investigations: Sodium 117 mmol/L (135–146) Potassium 4.2 mmol/L (3.5–5.3) Urea 1.9 mmol/L (2.5–7.8) Creatinine 57 μmol/L (60–120) Serum osmolality 252 mOsmol/kg (285–295) Urine osmolality 585 mOsmol/kg (100–1000)
Which mechanism best explains the development of hyponatraemia?
A. Increased sodium secretion in the distal tubule
B. Increased water absorption in the collecting duct
C. Increased water ingestion
D. Reduced cortisol secretion
E. Reduced sodium reabsorption in the proximal tubule
Increased water absorption in the collecting duct -> This is SIADH. They have hyponatreamia and this should result in dilute urine as well but instead the urine is inapproapriately diluted…. ASH is secreted and causes increased water reabsorption.
A 56 year old woman has home blood pressure readings averaging 160/90 mmHg. Hypertension is confirmed on 24 hour ambulatory monitoring. She has type 1 diabetes mellitus. Investigations: Urinary albumin: creatinine ratio 42 mg/mmol (<3.5) eGFR 43 mL/min/1.73 m2 (>60)
Which type of antihypertensive is most appropriate?
A. ACE inhibitor
B. Alpha blocker
C. Beta blocker
D. Calcium channel blocker
E. Thiazide-like diuretic
ACE inhibitor -> There is good evidence ACEi in addition to its hypertensive properties
A researcher is seeking to examine whether long-term mobile phone use is linked to acoustic neuroma risk. The information on mobile phone usage is collected from participants with acoustic neuroma and a comparable group of participants without acoustic neuroma, selected from the general practice register.
Which type of study design is being used?
A. Case–control study
B. Case series
C. Cohort study
D. Cross-sectional study
E. Ecological study
Case control study ->
This a study with the disease and without the disease and then you go back and count the exposure of something…
Cohort study is prospective where you take to groups and measure the percent of people who get that outcome.
Both are observational studies.
Case control -> They have the outcome and are checking the occurence of the exposure… Here the outcome is rarer
Cohort study -> they have the exposure and then check the incidence of the outcome. Here the exposures is rarer.
A 76 year old man undergoes an abdominoperineal resection for a low rectal carcinoma. He has a history of severe COPD and hypertension.
Which is the most appropriate method for providing analgesia during the early postoperative period?
A. Epidural anaesthesia
B. Intramuscular opioid
C. Oral non-steroidal analgesia
D. Patient controlled intravenous analgesia
E. Spinal anaesthesia
Epidural Anaestheisa -> ‘A patient with abdominal surgery and respiratory comorbidities should not be given opiods.
Epidural is the best as it can be topped up or titrated. Spinal anaesthesia cannot. IM is difficult to titrate.
An 18 year old woman has had a chronic skin condition for several years. She has noticed that she gets well-defined areas of scale formation at the sites of minor skin injuries, such as scratches or insect bites, typically when the injuries are healing. The scaling can persist for several weeks or months.
What is the most likely underlying skin condition?
A. Acne vulgaris
B. Eczema
C. Psoriasis
D. Seborrhoeic dermatitis
E. Vitiligo
Psoriasis -> Describing Koebnerisation. Psoriasis is the most common cause.
A 65 year old woman underwent mechanical aortic valve replacement and coronary revascularisation 3 days ago. She is being treated with dalteparin sodium. She is also taking aspirin long term.
Which is the most appropriate long-term patient management?
A. Apixaban
B. Clopidogrel
C. Continue dalteparin sodium
D. Rivaroxaban
E. Warfarin sodium
Warfarin Sodium -> All mechanical valves require treatment with aspirin and warfarin.
A 78 year old woman has pain in both shoulders, hips and thighs. She is very stiff on waking in the morning and takes 2–3 hours to loosen up. She finds getting dressed difficult. Investigations:Erythrocyte sedimentation rate 67 mm/hr (<20) CRP 87 mg/L (<5)
What is the most appropriate initial treatment?
A. Co-codamol
B. Leflunomide
C. Methotrexate
D. Naproxen
E. Prednisolone
Prednisolone -> NSAIDS dont really work. Prednisolone works.
A 27 year old man has left-sided chest pain of sudden onset that is worse on taking a deep breath. His temperature is 36.8°C, pulse rate 126 bpm, BP 108/60 mmHg, respiratory rate 28 breaths per minute and oxygen saturation 94% breathing air. Investigations: ECG: sinus tachycardia
Which is the most appropriate next investigation?
A. Chest X-ray
B. CT pulmonary angiography
C. D dimers
D. Echocardiography
E. Ventilation/perfusion isotope lung scan
Chest X-ray
There is a need to rule out other pathology before considering a PE. The NICE guidelines suggests that patients that are presenting with symptoms of PE should have MEdical Hx and Examinaiton . This should be then followed by a CXR to rule out other pathology. After this the WELLS score needs to be used.
A 28 year old woman has a neck lump that she noticed incidentally when rubbing her neck. There is a smooth, non-tender 1.5 cm mobile lump within the thyroid gland. Investigations: TSH 2.3 mU/L (0.3–4.2) Free T4 17 pmol/L (9–25)
Which is the most appropriate next investigation?
A. CT scan of neck
B. No further investigation needed
C. Thyroid antibodies
D. Thyroid scintigraphy
E. Ultrasound scan of neck
US scan of the neck -> There is evidence of a non-functioning thyroid nodule. this needs to be US so that it can be classified. An FNA may be indicated
A 78 year old man has type 2 diabetes. His clinician does not invite him to join an internet-based self-monitoring programme because she considers him to be too old to engage with it effectively.
What is the most appropriate description of the clinician’s approach?
A. Bias
B. Discrimination
C. Inequity
D. Prejudice
E. Stereotyping
Discrimination
A 78 year old patient is admitted with chronic oropharyngeal dysphagia. He has left ventricular systolic dysfunction from ischaemic heart disease. He is breathless on exertion, particularly when climbing stairs. He is being prepared for a percutaneous endoscopic gastrostomy feeding tube. The passage of a nasogastric tube has been unsuccessful, and he is having nil by mouth. He weighs 70 kg. His pulse rate is 72 bpm and BP 132/80 mmHg.
Which is the most appropriate volume of maintenance fluids (in mL) to prescribe for the next 24 hours? What is the formula?
A. 1750
B. 2450
C. 2800
D. 3000
E. 3250
20-25ml/kg = maintenance fluid requirement
1750
A 72 year old woman has 6 months of increasing pain at the base of her right thumb. She is having difficulty opening jars and sewing. She is otherwise well. No other joints are painful. She is taking regular analgesia. The first carpometacarpal joint is swollen and tender, with reduced opposition of the thumb.
Which is the most likely diagnosis?
A. De Quervain’s tenosynovitis
B. Gout
C. Osteoarthritis
D. Rheumatoid arthritis
E. Septic arthritis
Osteoarthritis
Rheumatoid Arthritis is a polyarthritis… Only one joint is affected.
Gout and septic arthrtitis will have a lot of a shorter history for presentation
Movement associated pain is likely to mechanical pain and that is associated with osteoarthritis.
De quervain’s tenosynovitis would be pain on the radial aspect of the wrist and all over that region.
A 62 year old man has acute breathlessness with a weak cough, following a recent viral upper respiratory infection. Over the past 4 months, he has had double vision, limb weakness and slurred speech when tired. His respiratory rate is 18 breaths per minute and oxygen saturation 96% breathing air. He is sweating and using his accessory muscles of inspiration.
Which is the most appropriate test to monitor his respiratory function?
A. Arterial blood gas
B. FEV 1
C. FVC
D. Peak expiratory flow rate
E. Ratio of FEV 1 to FVC
FVC -> Diagnosis is likely to be myasthenia Gravis. This needs to be monitored as it can lead to myasthenic crisis which is diagnosed when the FVC is less than 1L.
An 80 year old woman is admitted to the Emergency Department after being found collapsed at home. She has central chest pain. Her pulse rate is 30 bpm, BP 70/40 mmHg and respiratory rate 26 breaths per minute. Her 12-lead ECG shows sinus bradycardia with no evidence of myocardial ischaemia.
Which is the most appropriate initial treatment?
A. Adrenaline/epinephrine
B. Atropine sulfate
C. Dobutamine
D. Normal saline
E. Permanent cardiac pacemaker
atropine