Which card is used to determine blood type quickly?

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Multiple Choice

Which card is used to determine blood type quickly?

Explanation:
Rapid field blood typing relies on a compact, ready-to-read test that works with minimal steps and equipment. The Eldon card is designed exactly for this scenario: it contains wells preloaded with reagents for testing ABO (and often Rh) typing. A drop of blood is placed on the card, and agglutination in the appropriate wells is read quickly, giving you ABO and Rh results in minutes. This makes it ideal for austere environments, triage, and military medicine where a full lab isn’t available. In comparison, a blood type slide requires separate slides, reagents, and multiple handling steps, which takes longer and increases the chance of error in field conditions. An ABO card could also work, but Eldon cards are specifically built for rapid, all-in-one field use with straightforward interpretation. A Coombs card is used for the indirect antiglobulin test, not for quick initial ABO typing, so it isn’t suitable for determining a basic blood type in a fast-paced setting.

Rapid field blood typing relies on a compact, ready-to-read test that works with minimal steps and equipment. The Eldon card is designed exactly for this scenario: it contains wells preloaded with reagents for testing ABO (and often Rh) typing. A drop of blood is placed on the card, and agglutination in the appropriate wells is read quickly, giving you ABO and Rh results in minutes. This makes it ideal for austere environments, triage, and military medicine where a full lab isn’t available.

In comparison, a blood type slide requires separate slides, reagents, and multiple handling steps, which takes longer and increases the chance of error in field conditions. An ABO card could also work, but Eldon cards are specifically built for rapid, all-in-one field use with straightforward interpretation. A Coombs card is used for the indirect antiglobulin test, not for quick initial ABO typing, so it isn’t suitable for determining a basic blood type in a fast-paced setting.

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