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Holiday schedule

Quest Diagnostics Patient Service Centers will have modified hours during the holiday season.

  • Closing early at 12:00pm on December 24, 2025
  • Closed on December 25, 2025
  • Closing early at 12:00pm on December 31, 2025
  • Closed on January 1, 2026


Have a healthy, happy holiday!

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The Effects of Combined Arginine and Sinemet Stimulation on Copeptin Levels in the Pediatric Population

Endocrine Society's Annual Meeting

ENDO 2023

Chicago, IL, June 15-18, 2023

Poster presentation: The Effects of Combined Arginine and Sinemet Stimulation on Copeptin Levels in the Pediatric Population

Authors: Sastry S, March C, Gonzalez AR, McPhaul MJ, Garibaldi L

Specialty: Cardiovascular disease, Cardiology, Endocrinology, Pediatrics

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The Effect of Phlebotomy and Placement of an Intravenous Catheter on Plasma Catecholamine and Serum Copeptin Concentrations

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