Match each clinical presentation with the most appropriate next step in the diagnostic sequence.
- A 42-year-old woman with a new palpable breast mass whose initial diagnostic mammogram is indeterminate due to dense breast tissue.Targeted ultrasound of the breast
- A 45-year-old man with acute pleuritic chest pain and a high clinical probability of pulmonary embolism, but with a documented history of anaphylaxis to iodinated contrast media.Ventilation-perfusion (V/Q) scan of the lungs
- A 65-year-old man with a persistently elevated prostate-specific antigen (PSA) level; his initial 12-core transrectal ultrasound-guided biopsy revealed only benign prostatic hyperplasia.Multiparametric magnetic resonance imaging (MRI) of the prostate
- A 50-year-old woman with confirmed primary hyperparathyroidism (elevated calcium and intact parathyroid hormone) who meets clinical criteria for surgical parathyroidectomy.Technetium-99m sestamibi parathyroid scan
Cevap
Each specific clinical scenario must be paired with its guideline-indicated next diagnostic study: the palpable breast mass with dense tissue requires targeted ultrasound, the pulmonary embolism suspect with contrast allergy requires a V/Q scan, the suspected prostate cancer with negative initial biopsy requires a multiparametric MRI, and the preoperative primary hyperparathyroidism requires a sestamibi scan.
Each clinical scenario requires a specific progression of diagnostic testing to overcome limitations of the initial workup (e.g., dense breast tissue on mammogram, contrast allergy, sampling error in biopsy) or to properly prepare for definitive surgical management.
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Anahtar Kavram
Appropriate test sequencing when initial diagnostic studies are limited, contraindicated, or negative despite high clinical suspicion.