-<Observation xmlns="http://hl7.org/fhir">

<id value="7"/>

-<text>

<status value="generated"/>

-<div xmlns="http://www.w3.org/1999/xhtml">

<pre>

Test                  Units       Value       Reference Range
White Cell Count      x10*9/L     4.6         4.0 - 11.0

</pre>

</div>

</text>

<status value="final"/>

-<code>

-<coding>

<system value="http://loinc.org"/>

<code value="6690-2"/>

<display value="White Cell Count"/>

</coding>

</code>

-<subject>

<reference value="Patient/1"/>

</subject>

<effectiveDateTime value="2018-07-03"/>

-<valueQuantity>

<value value="4.6"/>

<unit value="x10*9/L"/>

<system value="http://unitsofmeasure.org"/>

<code value="10*9/L"/>

</valueQuantity>

-<referenceRange>

-<low>

<value value="4.0"/>

<unit value="x10*9/L"/>

<system value="http://unitsofmeasure.org"/>

<code value="10*9/L"/>

</low>

-<high>

<value value="11.0"/>

<unit value="x10*9/L"/>

<system value="http://unitsofmeasure.org"/>

<code value="10*9/L"/>

</high>

</referenceRange>

</Observation>