Which lab studies are indicated in the workup of coarctation of the aorta (CoA)?

Updated: Nov 20, 2018
  • Author: Syamasundar Rao Patnana, MD; Chief Editor: Stuart Berger, MD  more...
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Studies that may be indicated in evaluation of patients with suspected coarctation of the aorta (CoA) are summarized below.

Laboratory studies in neonatal patients who present in shock include the following:

  • Septic workup includes blood, urine, and cerebral spinal fluid (CSF) cultures.

  • Electrolyte levels, BUN, creatinine, and glucose concentrations should be tested.

  • Measure arterial blood gases and serum lactate levels.

Laboratory studies in older patients who present with hypertension include urinalysis, electrolyte levels, BUN, creatinine, and glucose concentrations.

Preductal and postductal pulse oximetry readings may show evidence of ductal right-to-left shunting, especially in the neonate.

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