```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns3:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/">
    <query_name>  45-54-TOTAL L@12:46:13</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>3</hlevel>
            <item_name>  45-54 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\45-54 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 45-54 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>  55-64 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\55-64 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ 55-64 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>&gt;= 65 years old</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Age\&gt;= 65 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Demographics \ Age \ &gt;= 65 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>5</hlevel>
            <item_name>TOTAL LDH (LOINC:2532-0)</item_name>
            <item_key>\\i2b2_LABS\i2b2\Labtests\LAB\(LLB16) Chemistry\(LLB20) Cardiac Tests\LDH\LOINC:2532-0\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Labtests \ Chemistry \ Cardiac Tests \ LDH (Group:LDH) \ TOTAL LDH (LOINC:2532-0)</tooltip>
            <class>ENC</class>
            <constrain_by_value>
                <value_operator>BETWEEN</value_operator>
                <value_constraint>140 and 280</value_constraint>
                <value_unit_of_measure>u/l</value_unit_of_measure>
                <value_type>NUMBER</value_type>
            </constrain_by_value>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns3:query_definition>

```

I want to find patients between the ages of 45-64 years old who have had a TOTAL LDH (LOINC:2532-0) test result within the range of 40-280 u/l.