Question

1. select all that apply for un - constituted controls for the dca system.

a. should be stored refrigerated at 36 - 46 degrees fahrenheit.
b. expire 90 days after being stored refrigerated 36 - 46 degrees fahrenheit.
c. should be stored at room temperature.
d. can be used until the last day of the expiration month shown on the bottle by the manufacturer.

Explanation:

To solve this, we analyze each option based on knowledge of DCA (presumably a medical/health - related substance) un - constituted controls:

• Option a: Un - constituted DCA controls are typically stored refrigerated in the 36 - 46°F range. This is a standard storage condition for many such medical - related substances to maintain their integrity.
• Option b: After being stored in the 36 - 46°F refrigerated environment, they often have a 90 - day expiration period. This is a common shelf - life extension rule for refrigerated medical products before reconstitution or use.
• Option c: Storing at room temperature is not correct for un - constituted DCA controls as it can lead to degradation.
• Option d: They can be used until the last day of the expiration month as per the manufacturer's label, which is a standard practice for medical products to follow the manufacturer's expiration guidance.

Answer:

a. Should be stored refrigerated at 36 - 46 degrees Fahrenheit,
b. Expire 90 days after being stored refrigerated 36 - 46 degrees Fahrenheit,
d. Can be used until the last day of the expiration month shown on the bottle by the manufacturer