emergency medicine

A 32-year-old woman presents to the ED with acute lower abdominal pain and nausea. She reports her last menstrual period was 6 weeks ago, and home pregnancy test was negative yesterday. Vitals are stable. A CT scan of the abdomen and pelvis is performed, the relevant image is shown. What is the MOST appropriate next step in management?

A 70-year-old man presents to the emergency department with sudden onset of severe headache, nausea, and vomiting. He has a history of hypertension and is currently on antihypertensive medication. On examination, he is drowsy and has a blood pressure of 180/110 mmHg. A CT scan of the brain shows a hyperdense area in the right basal ganglia. What is the most likely diagnosis?

A 25-year-old man presents to the emergency department with sudden onset of severe testicular pain on the right side. He reports no trauma or previous episodes. On examination, the right testis is swollen, tender, and lies higher in the scrotum compared to the left. The cremasteric reflex is absent on the affected side. What is the most appropriate next step in the management of this patient?

A 32-year-old woman presents to the emergency department with a 2-day history of fever, chills, and right flank pain. She has a history of recurrent urinary tract infections. On examination, she is febrile with a temperature of 38.5°C, her heart rate is 110 bpm, and her blood pressure is 110/70 mmHg. There is tenderness on palpation of the right costovertebral angle. Urinalysis shows pyuria and bacteriuria. What is the most appropriate initial management for this patient?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with a low-grade fever (38.1°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His vital signs are stable: BP 130/80 mmHg, HR 78 bpm, RR 16/min, SpO2 98% on air. Blood tests show a white cell count of 12.5 x 10^9/L and CRP 45 mg/L. An abdominal CT scan is performed (image provided). Following successful management of this acute episode, what is the most appropriate next step regarding long-term assessment of the colon?

A 75-year-old obese man with a history of hypertension and chronic lower limb skin changes, swelling, tingling, and weakness presents with sudden onset inability to stand or move his legs, accompanied by a loss of sensation extending up to his waist. On examination, he has flaccid paralysis of both lower limbs, absent deep tendon reflexes in the legs, and a sensory level at the umbilicus. Which of the following is the most appropriate initial investigation?

A 68-year-old male presents to the emergency department complaining of new onset left flank pain radiating to his groin. He reports a history of hypertension and hyperlipidemia, both managed with medications. He denies any recent trauma. His vital signs are stable: blood pressure 130/80 mmHg, heart rate 88 bpm, respiratory rate 16 breaths/min, and oxygen saturation 98% on room air. Physical examination reveals mild tenderness to palpation in the left flank, but no guarding or rebound tenderness. Peripheral pulses are normal and symmetric. A contrast-enhanced CT scan of the abdomen and pelvis is performed, the axial view is shown. Given the clinical context and the findings on the image, which of the following is the MOST appropriate next step in management?

A 45-year-old male presents to the ED with left flank pain radiating to his groin. He reports nausea but denies fever or dysuria. Vitals are stable. A point-of-care ultrasound is performed, with the image shown. Assuming no contraindications, what is the MOST appropriate next step in management?

A 45-year-old male with a known history of Blue Rubber Bleb Naevus Syndrome, characterised by recurrent gastrointestinal bleeding and multiple cutaneous vascular lesions, presents to the emergency department with acute onset severe, colicky abdominal pain, nausea, and vomiting. On examination, his abdomen is distended and diffusely tender with reduced bowel sounds. Vital signs are within normal limits. An urgent abdominal CT scan is performed. Based on the clinical presentation and the findings demonstrated in the image, what is the most appropriate immediate next step in management?

A 45-year-old woman presents to the emergency department with severe right upper quadrant abdominal pain that started suddenly 3 hours ago. She describes the pain as sharp and radiating to her right shoulder. She has a history of gallstones but has never had surgery. On examination, she is febrile with a temperature of 38.5°C, her blood pressure is 110/70 mmHg, and her heart rate is 100 bpm. She has tenderness in the right upper quadrant with a positive Murphy's sign. Laboratory tests reveal leukocytosis and mildly elevated liver enzymes. An abdominal ultrasound shows gallstones and a thickened gallbladder wall with pericholecystic fluid. What is the most appropriate next step in the management of this patient?

A 68-year-old man presents to the emergency department with a 3-day history of left lower quadrant abdominal pain, associated with mild fever (38.1°C) and constipation. On examination, he has localised tenderness in the left iliac fossa without guarding or rebound. His blood pressure is 130/80 mmHg, heart rate 78 bpm, respiratory rate 16 bpm. Blood tests show a white cell count of 12.5 x 10^9/L (normal range 4-11). A CT scan of the abdomen and pelvis is performed (image provided). Considering the patient's presentation and the findings demonstrated in the image, which of the following represents the most appropriate initial management strategy?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with a low-grade fever (38.1°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His vital signs are stable: BP 130/80 mmHg, HR 78 bpm, RR 16/min, SpO2 98% on air. Blood tests show a white cell count of 12.5 x 10^9/L and CRP 45 mg/L. An abdominal CT scan is performed (image provided). Based on the clinical presentation and the provided image, what is the most appropriate setting for this patient's initial management?

A 55-year-old female presents to the emergency department with a 24-hour history of severe right upper quadrant pain radiating to the back, associated with nausea, vomiting, and subjective fever. On examination, she is tachycardic (HR 105 bpm) and febrile (38.5°C), with marked tenderness and guarding in the right upper quadrant. Blood tests reveal a white cell count of 15 x 10^9/L and C-reactive protein of 120 mg/L. Liver function tests, including bilirubin, are within normal limits. She is initiated on intravenous fluids and broad-spectrum antibiotics. Imaging is obtained. Considering the patient's clinical status and the findings on the provided imaging, which of the following represents the most appropriate definitive management strategy?

A 24-year-old woman presents to the emergency department with a 3-day history of fever, sore throat, and fatigue. She also reports a rash that developed after taking amoxicillin prescribed by her GP for a presumed bacterial throat infection. On examination, she has cervical lymphadenopathy, a diffuse maculopapular rash, and mild splenomegaly. Her vital signs are stable. A monospot test is positive. Which of the following is the most likely explanation for the rash?

A 78-year-old male presents to the emergency department with a 6-hour history of sudden onset, severe pain and swelling in his right groin. He reports nausea but no vomiting. On examination, there is a tender, firm, non-reducible lump in the right inguinal region. Bowel sounds are present. Vitals are stable: BP 130/80, HR 75, Temp 36.8°C. A CT scan of the pelvis is performed, shown in the image. Based on the clinical presentation and the findings demonstrated in the image, what is the most appropriate immediate next step in the management of this patient?

A 78-year-old man with a history of chronic atrial fibrillation and hypertension presents to the emergency department with sudden onset of severe pain, numbness, and coldness in his left leg, starting approximately 3 hours ago. He is currently taking aspirin 100mg daily. On examination, his left foot and lower calf are pale and cool to touch. Pedal pulses are absent, popliteal pulse is weak. Sensation is decreased below the ankle, and motor function is preserved but weak. Capillary refill in the toes is delayed. His heart rate is irregularly irregular at 95 bpm, blood pressure 140/85 mmHg. What is the most appropriate initial management step?

A 38-year-old male presents to the emergency department complaining of sudden onset, severe left flank pain that radiates to his groin. He reports associated nausea and vomiting. He denies any fever, dysuria, or hematuria. His vital signs are: Temperature 37.0°C, Heart Rate 88 bpm, Blood Pressure 130/80 mmHg, Respiratory Rate 16 breaths/min, and SpO2 98% on room air. A urine dipstick is positive for blood. An ultrasound is performed, and the image is shown. Given the clinical presentation and the ultrasound findings, what is the MOST appropriate next step in management?

A 62-year-old woman presents to the emergency department with confusion and lethargy. Her family reports she has been increasingly forgetful over the past week and has had a decreased appetite. She has a history of type 2 diabetes mellitus and hypertension, for which she takes metformin and lisinopril. On examination, she is disoriented to time and place, with dry mucous membranes and decreased skin turgor. Her blood pressure is 100/60 mmHg, heart rate is 110 bpm, and temperature is 37.2°C. Laboratory tests reveal a serum sodium level of 118 mmol/L, serum osmolality of 260 mOsm/kg, and urine osmolality of 500 mOsm/kg. Which of the following is the most appropriate initial management for this patient?

A 60-year-old man presents to the emergency department with sudden onset of chest pain and shortness of breath. He has a history of chronic obstructive pulmonary disease (COPD) and is a current smoker. On examination, he is tachypneic and has decreased breath sounds on the right side. A chest X-ray reveals a large right-sided pneumothorax. What is the most appropriate initial management?

A 68-year-old male presents to the ED with abdominal distension, obstipation, and vomiting. He reports a history of multiple abdominal surgeries. An upright abdominal X-ray is performed. Based on the image, what is the MOST appropriate next step in management?

A 32-year-old male presents to the emergency department with a 3-day history of worsening abdominal pain, primarily localized to the right lower quadrant. He reports associated nausea and decreased appetite but denies vomiting or diarrhea. His past medical history is significant for Crohn's disease, diagnosed 8 years ago, managed with intermittent courses of oral corticosteroids and azathioprine. He admits to poor adherence to his azathioprine regimen over the past year. On examination, he is afebrile with a heart rate of 92 bpm, blood pressure of 120/80 mmHg, and oxygen saturation of 98% on room air. Abdominal examination reveals tenderness to palpation in the right lower quadrant with guarding. Bowel sounds are normoactive. Laboratory investigations reveal a white blood cell count of 11,500/µL with neutrophilia, a C-reactive protein (CRP) of 45 mg/L, and normal liver function tests. A CT scan of the abdomen and pelvis with IV contrast is performed, the relevant images of which are shown. Given the patient's presentation and imaging findings, which of the following is the MOST appropriate next step in management?

A 62-year-old male presents to the emergency department with a 2-day history of right flank pain, fever, and nausea. He reports a history of recurrent urinary tract infections. On examination, he has right costovertebral angle tenderness. Urinalysis reveals pyuria and leukocyte esterase. Which of the following is the most likely underlying condition related to the organ primarily affected in the right lumbar region?

A 28-year-old female presents to the ED with acute onset right lower quadrant pain. She reports nausea and vomiting. Her last menstrual period was 6 weeks ago, and she denies any vaginal bleeding. She is hemodynamically stable. A CT scan of the abdomen and pelvis is performed, with a relevant image shown. Considering the clinical presentation and the imaging findings, what is the MOST appropriate next step in the management of this patient?

A 72-year-old male presents to the ED with sudden onset shortness of breath and right-sided chest pain. He reports a recent fall but denies any significant trauma. He has a history of atrial fibrillation and is currently taking warfarin. His INR is 6.5. A CT scan of the chest is performed (image attached). What is the MOST appropriate immediate next step in management?

A 78-year-old male presents to the emergency department with a 6-hour history of sudden onset, severe pain and swelling in his right groin. He reports nausea but no vomiting. On examination, there is a tender, firm, non-reducible lump in the right inguinal region. Bowel sounds are present. Vitals are stable: BP 130/80, HR 75, Temp 36.8°C. A CT scan of the pelvis is performed, shown in the image. Integrating the patient's symptoms, physical examination, and the findings shown in the image, what is the most appropriate immediate next step?

A 45-year-old man presents to the emergency department with sudden onset of severe headache, nausea, and vomiting. He describes the headache as the worst he has ever experienced. He has a history of hypertension but is otherwise healthy. On examination, he is alert but in distress due to the headache. His blood pressure is 180/110 mmHg, heart rate is 90 bpm, and he has no focal neurological deficits. A CT scan of the head shows no acute intracranial hemorrhage. What is the next best step in management?

A 32-year-old woman presents to the emergency department with sudden onset of severe headache, nausea, and photophobia. She has no significant past medical history and is not on any medications. On examination, she is alert but in distress due to the headache. Her vital signs are stable, and there is no neck stiffness. A CT scan of the head is performed and shows no abnormalities. What is the most appropriate next step in the management of this patient?

A 70-year-old man with known atrial fibrillation presents with sudden onset of severe pain, pallor, and coldness in his left leg. Pulses are absent below the femoral artery. What is the most likely source of the embolus causing this presentation?

A 72-year-old man presents with sudden onset of severe right groin pain and a firm, non-reducible bulge. He reports mild nausea but denies vomiting or change in bowel habit. Vital signs are stable. A CT scan of the pelvis is performed, as shown. Considering the clinical context and the imaging findings, what is the most appropriate immediate management?

A 74-year-old lady presents with a 2-hour history of nosebleed. She is pale and clammy with ongoing bleeding despite digital pressure. Her blood pressure is 120/80 mmHg and her heart rate is 120/min. What is the most appropriate next step in management?

A 28-year-old female presents to the ED with acute onset right lower quadrant pain. She reports nausea and vomiting. Her last menstrual period was 6 weeks ago, and she denies any vaginal bleeding. She is hemodynamically stable. A CT scan of the abdomen and pelvis is performed, with a relevant image shown. What is the MOST appropriate next step in the management of this patient?

A 38-year-old male presents to the emergency department complaining of sudden onset, severe left flank pain that radiates to his groin. He reports associated nausea and vomiting. He denies any fever, dysuria, or hematuria. His vital signs are stable: blood pressure 120/80 mmHg, heart rate 88 bpm, respiratory rate 16 breaths/min, and temperature 37.0°C. A urinalysis reveals microscopic hematuria. A point-of-care ultrasound is performed, and the image is shown. Given the clinical presentation and ultrasound findings, what is the MOST appropriate next step in management?

An 80-year-old male presents to the emergency department with sudden onset of severe right groin pain and a non-reducible bulge. He has a history of a reducible inguinal hernia. Vitals are stable. A CT scan of the pelvis is performed. Considering the clinical presentation and the provided imaging, what is the most appropriate immediate management step?

A 25-year-old man presents to the emergency department with severe abdominal pain that started around his umbilicus and has now localized to the right lower quadrant. He has nausea and has vomited twice. On examination, he has tenderness and guarding in the right lower quadrant. His temperature is 37.8°C, and his white blood cell count is elevated. What is the most likely diagnosis?

A 62-year-old woman presents to the emergency department with sudden onset of severe headache, nausea, and vomiting. She describes the headache as the worst she has ever experienced. Her medical history includes hypertension and hyperlipidemia, for which she is on regular medication. On examination, she is alert but in distress, with a blood pressure of 180/100 mmHg, heart rate of 90 bpm, and respiratory rate of 18 breaths per minute. Neurological examination reveals neck stiffness but no focal neurological deficits. A CT scan of the head shows no acute intracranial hemorrhage. Which of the following is the most appropriate next step in management?

A 68-year-old male presents with abdominal pain, distension, and obstipation for 3 days, with a history of multiple abdominal surgeries. Vitals are HR 110, BP 110/70, T 37.8. Exam shows a distended abdomen with high-pitched bowel sounds. An upright abdominal X-ray is shown. Considering the clinical context and the imaging findings, which of the following is the MOST likely expected outcome with initial non-operative management?

A 72-year-old male presents to the ED with increasing shortness of breath and epigastric pain, especially when lying down. He has a history of GORD, hypertension and COPD. His vitals are stable. An X-ray is performed. What is the MOST likely underlying cause of his presentation?

A 78-year-old male presents to the emergency department with a 2-day history of intermittent upper abdominal pain radiating to the chest and mild dysphagia. He denies shortness of breath or fever. Vital signs are stable. A chest X-ray is obtained. Considering the radiographic findings in the context of the patient's presentation, what is the most appropriate immediate management plan?

A 68-year-old male presents to the ED with left lower quadrant abdominal pain, fever, and leukocytosis. A CT scan of the abdomen and pelvis is performed. Based on the image, what is the MOST appropriate next step in management?

A 68-year-old male with a history of multiple abdominal surgeries presents to the emergency department complaining of abdominal pain, distension, and obstipation for the past 3 days. His vital signs are: HR 110 bpm, BP 110/70 mmHg, RR 22 breaths/min, SpO2 97% on room air, and temperature 37.8°C. Physical examination reveals a distended abdomen with high-pitched bowel sounds. An upright abdominal X-ray is performed, as shown. Given the clinical context and the radiographic findings, which demonstrate significant intraluminal gas accumulation proximal to the likely site of obstruction, what is the predominant source of this gas?

A 55-year-old male presents with LLQ pain, fever, and increased WBC. A CT scan is performed. He is hemodynamically stable. Based on the image, which of the following is the MOST appropriate initial management strategy?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with a low-grade fever (38.1°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His vital signs are stable: BP 130/80 mmHg, HR 78 bpm, RR 16/min, SpO2 98% on air. Blood tests show a white cell count of 12.5 x 10^9/L and CRP 45 mg/L. An abdominal CT scan is performed (image provided). Based on the clinical presentation and the provided image, if outpatient management is deemed appropriate, which of the following antibiotic regimens is most consistent with current Australian guidelines?

A 68-year-old male presents to the ED with left lower quadrant abdominal pain, fever, and nausea for 3 days. His WBC count is 14,000. A CT scan of the abdomen and pelvis is performed, the axial view is shown. What is the most appropriate next step in management?

A 72-year-old male presents with abdominal distension, vomiting, and inability to pass flatus for 48 hours. He has a history of prior bowel resection. Examination reveals a tympanitic abdomen and tenderness to palpation. His vitals are stable. An abdominal X-ray is performed, as shown. Considering the clinical context and the radiographic findings, what is the primary purpose of inserting a nasogastric tube in this patient?

A 65-year-old man presents to the emergency department with sudden onset of severe headache, nausea, and vomiting. He has a history of hypertension and is currently on antihypertensive medication. On examination, he is alert but in distress due to the headache. His blood pressure is 180/110 mmHg, heart rate is 90 bpm, and he has no focal neurological deficits. A CT scan of the head shows a subarachnoid hemorrhage. Which of the following is the most appropriate initial management step in this patient?

A 75-year-old male is brought to the emergency department by ambulance with sudden onset severe shortness of breath and left-sided pleuritic chest pain that began approximately 4 hours ago. He reports feeling lightheaded and generally unwell. His past medical history includes chronic atrial fibrillation, hypertension, and type 2 diabetes mellitus. He is currently prescribed warfarin 5mg daily, metoprolol 50mg twice daily, perindopril 4mg daily, and metformin 1000mg twice daily. He denies any recent falls, trauma, or invasive procedures. On examination, he is visibly distressed and tachypnoeic. His vital signs are: temperature 36.8°C, heart rate 125 bpm (irregularly irregular), blood pressure 88/55 mmHg, respiratory rate 32 breaths per minute, oxygen saturation 85% on room air. Jugular venous pressure is not elevated. Cardiac auscultation reveals a rapid, irregular rhythm with no murmurs. Pulmonary auscultation reveals significantly diminished breath sounds over the entire left hemithorax, with dullness to percussion. The right lung field is clear. Abdominal examination is unremarkable. Peripheral pulses are weak but present. His capillary refill time is prolonged at 4 seconds. Initial laboratory results show haemoglobin 135 g/L (baseline 140 g/L three months ago), white cell count 9.2 x 10^9/L, platelets 250 x 10^9/L, creatinine 110 µmol/L, electrolytes within normal limits. His INR is 7.8. An urgent CT scan of the chest is performed, and a representative axial image is shown. Based on the clinical presentation and the findings demonstrated in the image, what is the single MOST appropriate immediate management step?

A 68-year-old man presents with 3 days of worsening left lower quadrant pain, fever, and nausea. He has a history of diverticulosis. On examination, he is tachycardic (HR 105), afebrile (37.5°C), and has localised tenderness with guarding in the left iliac fossa. His blood tests show a WCC of 16 x 10^9/L and CRP 150 mg/L. He is commenced on intravenous antibiotics. A CT scan is performed (image provided). Considering the clinical context and the findings on the image, what is the most appropriate next step in management?

A 55-year-old male presents to the emergency department with a 2-day history of left lower quadrant abdominal pain, associated with fever (38.2°C) and mild nausea. He denies vomiting, diarrhoea, or rectal bleeding. On examination, he has localised tenderness in the left iliac fossa. His blood pressure is 130/80 mmHg, heart rate 85 bpm, respiratory rate 16 bpm. Blood tests show a white cell count of 14 x 10^9/L and CRP 80 mg/L. A CT scan of the abdomen and pelvis is performed (image provided). Considering the patient's presentation and the findings on the provided image, which of the following is the most appropriate initial management strategy?

A 75-year-old male on warfarin for atrial fibrillation presents with acute dyspnoea and pleuritic chest pain. He is hypotensive with a BP of 90/60 mmHg and tachycardic at 110 bpm. His INR is 7.2. A chest CT is performed (image attached). Considering the clinical context and imaging findings, what is the MOST appropriate immediate management step?

A 42-year-old male presents to the emergency department with a 3-day history of colicky abdominal pain, nausea, and vomiting. He reports that he has not had a bowel movement in 2 days and has noticed some blood in his vomit. He has a known history of multiple cutaneous hemangiomas since childhood. On examination, his abdomen is distended and tympanic, with tenderness to palpation in all quadrants. Bowel sounds are high-pitched and infrequent. Vitals are stable. A CT scan of the abdomen and pelvis is performed, and a representative image is shown. What is the MOST likely underlying cause of the patient's acute presentation, considering his history and the imaging findings?