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Difficulty: EasyDiagnostic Workup and Test Sequencing

Match each patient's clinical presentation with the most appropriate next step in diagnostic imaging.

  • A 28-year-old man presenting with a newly discovered painless, firm testicular nodule.Scrotal ultrasound
  • A 42-year-old woman presenting with fever, severe right upper quadrant abdominal pain, and a positive Murphy sign.Right upper quadrant abdominal ultrasound
  • A 65-year-old man presenting with acute shortness of breath, tachycardia, and a high clinical probability of pulmonary embolism.Computed tomography pulmonary angiography (CTPA)
  • A 35-year-old non-pregnant woman presenting with fever, severe right lower quadrant abdominal pain, and leukocytosis.Computed tomography of the abdomen and pelvis with intravenous contrast

Answer

The correct matches pair suspected testicular cancer with scrotal ultrasound, acute cholecystitis with right upper quadrant abdominal ultrasound, pulmonary embolism with computed tomography pulmonary angiography, and acute appendicitis with computed tomography of the abdomen and pelvis.
Each matched pair represents the standard-of-care initial diagnostic imaging test for the suspected condition, optimizing diagnostic accuracy while minimizing unnecessary risks such as radiation or contrast exposure when not indicated.

Step-by-Step Solution

1
Analyze the first clinical scenario of a painless testicular mass in a young man.
Identify the need to differentiate solid from cystic lesions.
Scrotal ultrasound is the standard initial step before any invasive urologic intervention.
2
Analyze the second scenario involving right upper quadrant pain and fever.
Identify acute cholecystitis as the most likely diagnosis.
Right upper quadrant ultrasound is highly sensitive, lacks radiation, and is the gold standard initial test for biliary tract disease.
3
Analyze the third scenario indicating a high probability of pulmonary embolism.
Select CT pulmonary angiography.
CTPA provides definitive visualization of pulmonary vasculature to confirm or rule out the embolus.
4
Analyze the fourth scenario of right lower quadrant pain and fever in a non-pregnant adult.
Select CT of the abdomen and pelvis with contrast.
CT is the most accurate imaging modality for diagnosing acute appendicitis in this demographic.

Key Concept

Selecting the guideline-indicated initial diagnostic imaging modality based on specific clinical presentations.
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Topics

Diagnostic Workup and Test Sequencing

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