Answer
The prepared solution is light-sensitive, so protected syringes, tubing or an infusion-bag sleeve are used to preserve it.
Sources for this answer
- Sodium Nitroprusside 50 mg/2 mL Concentrate For Solution For Infusion — Current selected SmPCemc · Summary of Product Characteristics
- PubMedPubMed · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.