<xs:schema xmlns="http://www.rixg.org.uk/" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.rixg.org.uk/">
    <xs:include schemaLocation="../Procedures/Procedure.xsd"/>
    <xs:include schemaLocation="../Types/RRTypes.xsd"/>
    
    <xs:complexType name="DialysisSessions">
        <xs:sequence>
            <xs:element name="DialysisSession" type="DialysisSession" minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
        <xs:attribute name="start" type="xs:date"/>
        <xs:attribute name="stop" type="xs:date"/>
    </xs:complexType>

    <xs:complexType name="DialysisSession">
        <xs:complexContent>
            <xs:extension base="Procedure">
                <xs:sequence>
                    <xs:element name="Attributes" minOccurs="0">
                        <xs:complexType>
                            <xs:sequence>
                                <xs:element name="QHD19" type="RRYesNo" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Symptomatic hypotension</xs:documentation>
                                    </xs:annotation>
                                </xs:element>
                                <xs:element name="QHD20" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Vascular Access Used (RR02)</xs:documentation>
                                    </xs:annotation>
                                    <xs:simpleType>
                                        <xs:restriction base="xs:string">
                                            <xs:enumeration value="NLN">
                                                <xs:annotation>
                                                    <xs:documentation>Non-Tunneled Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="TLN">
                                                <xs:annotation>
                                                    <xs:documentation>Tunneled Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="AVF">
                                                <xs:annotation>
                                                    <xs:documentation>Arteriovenous Fistula</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="AVG">
                                                <xs:annotation>
                                                    <xs:documentation>Arteriovenous Graft</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="VLP">
                                                <xs:annotation>
                                                    <xs:documentation>Vein Loop</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="PDC">
                                                <xs:annotation>
                                                    <xs:documentation>PD Catherer</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="PDE">
                                                <xs:annotation>
                                                    <xs:documentation>PD Embedded Catherer</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="PDT">
                                                <xs:annotation>
                                                    <xs:documentation>PD Catherer Temp</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="HER">
                                                <xs:annotation>
                                                    <xs:documentation>HeRO Graft</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                        </xs:restriction>
                                    </xs:simpleType>
                                </xs:element>
                                <xs:element name="QHD21" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Vascular Access Site (RR41)</xs:documentation>
                                    </xs:annotation>
                                    <xs:simpleType>
                                        <xs:restriction base="xs:string">
                                            <xs:enumeration value="BB">
                                                <xs:annotation>
                                                    <xs:documentation>Brachio-Basilic</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="BC">
                                                <xs:annotation>
                                                    <xs:documentation>Brachio-Cephalic</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="LA">
                                                <xs:annotation>
                                                    <xs:documentation>Axillary Vein Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="LF">
                                                <xs:annotation>
                                                    <xs:documentation>Femoral Vein Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="LJ">
                                                <xs:annotation>
                                                    <xs:documentation>Intenal Jugular Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="LS">
                                                <xs:annotation>
                                                    <xs:documentation>Subclavian Line</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="PS">
                                                <xs:annotation>
                                                    <xs:documentation>Popliteal-Long Saphenous</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="RC">
                                                <xs:annotation>
                                                    <xs:documentation>Radio-Cephalic Wrist</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="RU">
                                                <xs:annotation>
                                                    <xs:documentation>Radio-Ulnar</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="SB">
                                                <xs:annotation>
                                                    <xs:documentation>Radio-Cephalic Snuff Box</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="TB">
                                                <xs:annotation>
                                                    <xs:documentation>Brachio-Basilic and Transposition</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="TS">
                                                <xs:annotation>
                                                    <xs:documentation>Popliteal-Long Saphenous and Transposition</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="UA">
                                                <xs:annotation>
                                                    <xs:documentation>Ankle</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="UC">
                                                <xs:annotation>
                                                    <xs:documentation>Ulna-Cephalic</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="UF">
                                                <xs:annotation>
                                                    <xs:documentation>Forearm NOS</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="UO">
                                                <xs:annotation>
                                                    <xs:documentation>Other</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="UT">
                                                <xs:annotation>
                                                    <xs:documentation>Thigh NOS</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                        </xs:restriction>
                                    </xs:simpleType>
                                </xs:element>
                                <xs:element name="QHD22" type="RRYesNo" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Access in two sites simultaneously</xs:documentation>
                                    </xs:annotation>
                                </xs:element>
                                <xs:element name="QHD30" type="xs:integer" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Blood Flow Rate</xs:documentation>
                                    </xs:annotation>
                                </xs:element>
                                <xs:element name="QHD31" type="xs:integer" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Time Dialysed in Minutes</xs:documentation>
                                    </xs:annotation>
                                </xs:element>
                                <xs:element name="QHD32" type="xs:integer" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Sodium in Dialysate</xs:documentation>
                                    </xs:annotation>
                                </xs:element>
                                <xs:element name="QHD33" minOccurs="0">
                                    <xs:annotation>
                                        <xs:documentation>Needling Method (RR50)</xs:documentation>
                                    </xs:annotation>
                                    <xs:simpleType>
                                        <xs:restriction base="xs:string">
                                            <xs:enumeration value="L">
                                                <xs:annotation>
                                                    <xs:documentation>Rope Ladder</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="B">
                                                <xs:annotation>
                                                    <xs:documentation>Button Hole</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                            <xs:enumeration value="U">
                                                <xs:annotation>
                                                    <xs:documentation>Unknown</xs:documentation>
                                                </xs:annotation>
                                            </xs:enumeration>
                                        </xs:restriction>
                                    </xs:simpleType>
                                </xs:element>
                            </xs:sequence>
                        </xs:complexType>
                    </xs:element>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
</xs:schema>