emergency medicine

A 68-year-old man presents to the emergency department with a 2-day history of worsening left lower quadrant abdominal pain, associated with subjective fever, chills, and nausea. He reports some recent constipation. His past medical history includes hypertension and hyperlipidaemia, both well-controlled on medication. On examination, his temperature is 38.5°C, pulse 95 bpm, BP 130/80 mmHg, respiratory rate 18/min, oxygen saturation 98% on room air. Abdominal examination reveals tenderness and guarding in the left iliac fossa, with mild rebound tenderness. Bowel sounds are reduced. Digital rectal examination is unremarkable. Blood tests show a white cell count of 15 x 10^9/L (neutrophils 85%), haemoglobin 145 g/L, platelets 250 x 10^9/L, C-reactive protein of 120 mg/L. Urea, electrolytes, and creatinine are within normal limits. Liver function tests are normal. A CT scan of the abdomen and pelvis is performed (image provided). Considering the clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate initial management strategy?

A 55-year-old female presents to the emergency department with a 24-hour history of severe right upper quadrant pain radiating to her back, associated with nausea, vomiting, and subjective fever. On examination, she is febrile (38.5°C) and has marked tenderness and guarding in the right upper quadrant. Her vital signs are otherwise stable. 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 subsequently performed. Considering the patient's clinical presentation and the findings demonstrated in the provided imaging, what is the most appropriate definitive management strategy?

A 72-year-old male presents to the emergency department complaining of sudden onset shortness of breath and right-sided chest pain. He reports that the pain started acutely this morning and has been gradually worsening. He has a history of atrial fibrillation and has been taking warfarin for the past 5 years. He denies any recent trauma or injury. On examination, his vital signs are: heart rate 110 bpm, blood pressure 100/60 mmHg, respiratory rate 28 breaths per minute, oxygen saturation 88% on room air. Auscultation reveals decreased breath sounds on the right side. The patient is pale and diaphoretic. A chest X-ray was initially performed, followed by the image shown. Given the clinical presentation and the findings on the image, what is the MOST appropriate next step in management?

A 55-year-old man presents with 2 days of left lower quadrant pain and mild constipation. He denies fever, nausea, or vomiting. On examination, he is afebrile, BP 120/70, HR 65, O2 sat 99% on air. There is mild LLQ tenderness without guarding or rebound. Bloods show WCC 11.5, CRP 30. A CT scan is performed. Considering the clinical presentation and the findings demonstrated in the image, what is the most appropriate initial management plan?

A 68-year-old man presents to the emergency department with 90 minutes of crushing chest pain radiating to his left arm. He is diaphoretic and anxious. ECG shows 3mm ST elevation in leads V2-V4. His blood pressure is 130/80 mmHg, heart rate 75 bpm. What is the most appropriate immediate next step in management?

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?

An 18-year-old teenage girl presents with a sudden change in behavior at a music festival, appearing confused and aggressive after consuming 5-6 vodkas, with uncertainty about illicit drug use. What is the most appropriate next step in her management in the Australian context?

A 75-year-old male with a history of atrial fibrillation on warfarin presents to the emergency department with acute onset shortness of breath and right-sided chest pain. His vital signs are stable. His INR is found to be 7.2. A chest CT is performed (image attached). Based on the clinical presentation and imaging findings, what is the MOST appropriate immediate management step?

A 62-year-old man presents to the emergency department with sudden onset of severe headache, nausea, and vomiting. He has a history of poorly controlled hypertension and is currently on no medications. On examination, he is drowsy but arousable, with a blood pressure of 210/120 mmHg and a heart rate of 90 bpm. Neurological examination reveals right-sided hemiparesis and a left gaze preference. A CT scan of the head shows a large hyperdense area in the left basal ganglia with surrounding edema. What is the most appropriate initial management for this patient?

A 78-year-old male on warfarin for atrial fibrillation presents with sudden onset of severe dyspnoea and right-sided pleuritic chest pain. He denies trauma. On examination, he is tachypnoeic, oxygen saturation is 92% on room air. Blood pressure 110/70 mmHg, heart rate 95 bpm. Chest examination reveals decreased breath sounds on the right. A CT scan of the chest is performed. Considering the patient's clinical presentation, medical history, and the findings demonstrated in the provided image, which of the following pharmacological agents is the most appropriate immediate intervention?

A 68-year-old man presents to the emergency department with a 2-day history of worsening left lower quadrant abdominal pain, associated with subjective fever, chills, and nausea. He reports some recent constipation. On examination, his temperature is 38.5°C, pulse 95 bpm, BP 130/80 mmHg. Abdominal examination reveals tenderness and guarding in the left iliac fossa. Bowel sounds are reduced. Blood tests show a white cell count of 15 x 10^9/L (neutrophils 85%) and C-reactive protein of 120 mg/L. Urea, electrolytes, and creatinine are within normal limits. A CT scan of the abdomen and pelvis is performed (image provided). Considering the clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate initial management strategy?

A 62-year-old male presents to the emergency department complaining of left lower quadrant abdominal pain for the past three days. He describes the pain as constant and sharp, rating it an 8 out of 10. He also reports nausea, decreased appetite, and subjective fevers. His past medical history is significant for hypertension and hyperlipidemia, both well-controlled with medications. He denies any recent travel or sick contacts. On physical examination, his abdomen is tender to palpation in the left lower quadrant with guarding. Bowel sounds are present but diminished. The remainder of his examination is unremarkable. His vital signs are: Temperature 38.2°C, Heart Rate 98 bpm, Blood Pressure 140/90 mmHg, Respiratory Rate 18 breaths per minute, and Oxygen Saturation 98% on room air. Laboratory results show a white blood cell count of 14,000/µL with a neutrophilic predominance. A CT scan of the abdomen and pelvis with intravenous contrast is performed, and a representative image is shown. Assuming the patient has no allergies, what is the MOST appropriate initial management strategy?

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 32-year-old woman presents to the emergency department with severe right lower abdominal pain, nausea, and vomiting. She reports that the pain started suddenly a few hours ago and has been worsening. Her last menstrual period was two weeks ago. On examination, she has tenderness and guarding in the right lower quadrant. A pregnancy test is negative. What is the most likely diagnosis?

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. Considering the patient's history, acute presentation, and the findings on the abdominal CT scan, what is the most appropriate immediate management strategy?

A 78-year-old male on warfarin presents to the ED after a fall. He complains of dyspnea and right-sided chest pain. His INR is 5.0. Vitals: HR 110, BP 100/60, RR 28, SpO2 90% on room air. The provided image was obtained. What is the MOST appropriate next step?

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 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 62-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 to the ED with sudden onset shortness of breath and right-sided chest pain. He has a history of atrial fibrillation and has been taking warfarin for the past 5 years. His INR is currently 6.0. A CT scan of the chest is performed (image attached). What is the MOST appropriate initial management step?

A 32-year-old man presents to the emergency department with severe abdominal pain that started suddenly 6 hours ago. The pain is located in the right lower quadrant and is associated with nausea and vomiting. On examination, he has rebound tenderness and guarding in the right lower quadrant. His temperature is 37.8°C, heart rate is 110 beats per minute, and blood pressure is 120/80 mmHg. A CT scan of the abdomen shows an inflamed appendix with surrounding fat stranding. 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 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 45-year-old man presents to the emergency department with sudden onset of severe chest pain radiating to his back. He describes the pain as tearing in nature. He has a history of hypertension and is a smoker. On examination, his blood pressure is 180/110 mmHg in the right arm and 160/100 mmHg in the left arm. His heart rate is 110 bpm, and he has diminished pulses in the left radial artery. A chest X-ray shows a widened mediastinum. Which of the following is the most appropriate next step in management?

A 67-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 amlodipine. On examination, he is drowsy but arousable, with a blood pressure of 210/120 mmHg and a heart rate of 90 bpm. Neurological examination reveals a left-sided hemiparesis and a right-sided facial droop. A CT scan of the head shows a hyperdense lesion in the right basal ganglia with surrounding edema. Which of the following is the most appropriate initial management step?

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 male presents to the ED with left flank pain radiating to his groin. He reports nausea but no vomiting. Vitals are stable. A focused ultrasound is performed, as shown. What is the MOST appropriate next step in management?

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 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 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 78-year-old man presents to the emergency department with acute, severe right groin pain and a palpable, non-reducible mass. He reports associated nausea but denies vomiting or changes in bowel habit. His vital signs are within normal limits, and bowel sounds are audible. A CT scan of the pelvis is performed, the findings of which are depicted in the image. Given the clinical context and the information revealed by the imaging study, what is the most appropriate immediate management strategy?

A 30-year-old man presents to the emergency department with severe right lower quadrant abdominal pain, nausea, and vomiting. The pain started around the umbilicus and then localized to the right lower quadrant. On examination, he has tenderness and guarding in the right lower quadrant. His temperature is 38.3°C, heart rate is 100 bpm, and blood pressure is 120/80 mmHg. 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 63-year-old man presents to the ED with increasing shortness of breath and epigastric discomfort, particularly after meals. He has a history of GERD managed with occasional antacids. Physical examination reveals decreased breath sounds at the left lung base. 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 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 28-year-old woman presents to the emergency department with sudden onset of severe right lower abdominal pain. She reports nausea but no vomiting. Her last menstrual period was two weeks ago, and she is not sexually active. On examination, she has tenderness in the right lower quadrant with guarding. Her vital signs are stable. A pelvic ultrasound shows a 5 cm cyst on the right ovary with free fluid in the pelvis. What is the most likely diagnosis?

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 78-year-old male on warfarin for atrial fibrillation presents to the emergency department with sudden onset of severe dyspnoea and right-sided pleuritic chest pain. He denies trauma. On examination, he is tachypnoeic, oxygen saturation is 92% on room air. Blood pressure 110/70 mmHg, heart rate 95 bpm. Chest examination reveals decreased breath sounds on the right. A CT scan of the chest is performed. Considering the patient's clinical presentation, medical history, and the findings demonstrated in the provided image, which of the following interventions is most critical to initiate *before* considering invasive drainage?

A 75-year-old female presents to the emergency department with a 24-hour history of worsening colicky abdominal pain, nausea, and multiple episodes of bilious vomiting. She reports no passage of flatus or stool for the past 18 hours. Her past medical history includes an open appendectomy 30 years ago and a hysterectomy 10 years ago. On examination, she is afebrile, heart rate 92 bpm, blood pressure 130/80 mmHg, respiratory rate 18/min, oxygen saturation 98% on room air. Her abdomen is distended and diffusely tender to palpation, with high-pitched tinkling bowel sounds on auscultation. A plain abdominal X-ray series, including the image provided, was obtained. Considering the patient's clinical presentation and the findings demonstrated in the provided image, which of the following represents the most appropriate immediate next step in her 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 68-year-old male presents with a 3-day history of abdominal pain, distension, and obstipation, with a background of multiple abdominal surgeries. Vitals show HR 110, BP 110/70, T 37.8°C. Physical exam reveals a distended abdomen with high-pitched bowel sounds. An upright abdominal X-ray is shown. Considering the clinical findings and the radiographic appearance, which of the following potential complications is the MOST critical to evaluate for urgently?

A 45-year-old male presents to the ED with left flank pain radiating to his groin. He reports nausea but no vomiting. Vitals are stable. A focused assessment with sonography for trauma (FAST) exam is performed, with a view obtained as shown. What is the MOST appropriate next step in management?

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 32-year-old male, originally from a high-TB prevalence country, presents to the emergency department with a persistent cough for the past 3 weeks, night sweats, and a 5 kg weight loss. He denies any fever or shortness of breath. Physical examination reveals normal breath sounds bilaterally, with no wheezes or crackles. His vital signs are stable: temperature 37.2°C, heart rate 88 bpm, blood pressure 120/80 mmHg, and oxygen saturation 98% on room air. A chest X-ray was initially interpreted as showing a possible lung mass, prompting further investigation with a PET-CT scan, the axial view of which is shown. Sputum samples have been sent for microscopy and culture, but results are pending. Given the clinical presentation and the imaging findings, what is the MOST appropriate next step in management?

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 presents to the emergency department complaining of acute onset shortness of breath and right-sided chest pain. He reports that the pain started suddenly this morning and has been gradually worsening. He has a history of paroxysmal atrial fibrillation, for which he takes warfarin. He denies any recent trauma or injury. On examination, his vital signs are: heart rate 115 bpm, blood pressure 95/60 mmHg, respiratory rate 30 breaths per minute, oxygen saturation 87% on room air. Auscultation reveals decreased breath sounds on the right side. The patient appears pale and is diaphoretic. His INR is 6.5. A CT scan of the chest is performed, and the relevant image is shown. What is the MOST appropriate next step in the management of this patient?

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 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 63-year-old man presents to the emergency department complaining of increasing shortness of breath and epigastric discomfort over the past several months. He reports feeling full quickly after eating only small amounts. He denies any chest pain, fever, or recent weight loss. His past medical history includes hypertension and well-controlled type 2 diabetes. He takes lisinopril and metformin daily. On examination, his vital signs are stable: blood pressure 130/80 mmHg, heart rate 82 bpm, respiratory rate 18 breaths/min, and oxygen saturation 96% on room air. Auscultation of the chest reveals decreased breath sounds at the left base. Abdominal examination reveals mild epigastric tenderness to palpation, but no rebound tenderness or guarding. The provided image was obtained. Which of the following is the MOST appropriate next step in management?

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?