Representing Infusions using medication resource

1

Hi,

Can any one help mas to how I should use the medication resource to represent.

2mg drug A
10mg drug B
in 1000 ml of dilutant C

Thanks

Ewan

2

You would use Medication with 3 ingredients - 2 that are active and one that is not.

3

Thanks Lloyd but I still don’t understand how you represent the quantity of the ingredients as both amount and ingredientStrength are ratios rather than quantities.

Thanks

Ewan

4

The denominator would just be “1”. However, agree that should be clarified in the spec. Can you please submit a change request?

5

Thanks.

So I think, 2 g Ceftriaxone powder in 100ml Glucose 5%, loks like this:

{
    "resourceType" : "Medication",
    "ingredient": [
        {
            "itemCodeableConcept": {
                "coding": [
                    {
                        "system": "http://snomed.info/sct",
                        "code": "23107411000001109",
                        "display": "Ceftriaxone 2g powder for solution for infusion vials"
                            }  
                        ]
                      },
                      "isActive": true,
                      "strength": {
                          "numerator": {
                              "value": 2,
                              "unit": "g",
                              "code": "258682000",
                              "system": "http://unitsofmeasure.org"
                          },
                          "denominator": {
                              "value": 1
                          }
                      }
                   },
                {
                    "itemCodeableConcept": {
                        "coding": [
                            {
                                "system": "http://snomed.info/sct",
                                "code": "768547002",
                                "display": "Anhydrous Glucose"
                                    }  
                                ]
                              },
                              "isActive": false,
                              "strength": {
                                  "numerator": {
                                      "value": 5,
                                      "unit": "g",
                                      "code": "258682000",
                                      "system": "http://unitsofmeasure.org"
                                  },
                                  "denominator": {
                                      "value": 1
                                  }
                              }
                           },
                           {
                            "itemCodeableConcept": {
                                "coding": [
                                    {
                                        "system": "http://snomed.info/sct",
                                        "code": "346712003",
                                        "display": "Water"
                                            }  
                                        ]
                                      },
                                      "isActive": false,
                                      "strength": {
                                          "numerator": {
                                              "value": 100,
                                              "unit": "ml",
                                              "code": "258773002",
                                              "system": "http://unitsofmeasure.org"
                                          },
                                          "denominator": {
                                              "value": 1
                                            }
                                        }
                                    }
                                ]
                            }
6

That looks right to me