Match each clinical scenario involving suspected venous thromboembolism to the most appropriate next step in the diagnostic test sequence based on current clinical guidelines.
- A patient with a high pre-test probability for pulmonary embolism, a normal serum creatinine level, and no known drug allergies.Computed tomography pulmonary angiography (CTPA)
- A patient with a low pre-test probability for pulmonary embolism presenting with acute pleuritic chest pain and a normal baseline chest radiograph.High-sensitivity plasma D-dimer assay
- A pregnant patient in her second trimester with acute dyspnea, pleuritic chest pain, and a newly swollen, tender left calf.Compression ultrasonography of the lower extremities
- A patient with a high pre-test probability for pulmonary embolism who has stage 4 chronic kidney disease and a documented history of anaphylaxis to iodinated contrast media.Ventilation-perfusion (V/Q) scan
Cevap
High pre-test probability matches with CTPA. Low pre-test probability matches with D-dimer assay. Pregnant patient with a swollen calf matches with lower extremity ultrasonography. High pre-test probability with severe chronic kidney disease and contrast allergy matches with V/Q scan.
The correct matches reflect standard evidence-based algorithms for the diagnostic workup of suspected venous thromboembolism, optimizing diagnostic yield while minimizing patient harm from radiation and contrast.
Adım Adım Çözüm
Anahtar Kavram
Appropriate test sequencing for suspected pulmonary embolism depends heavily on clinical pre-test probability, pregnancy status, concurrent symptoms of deep vein thrombosis, and contraindications to contrast media.
Tahmini Süre:1m 30s