powershell xml select attribute value where clause

Question

I have a xml file with the following elements:

Answer 1

Use XPath. Assuming that $qrda is your XML document:

$path = "/ClinicalDocument/recordTarget/patientRole/telecom[@use='HP']"
$telecom = $qrda.SelectSingleNode($path)

since that path is pretty long and overly specific we can trim it down:

$telecom = $qrda.SelectSingleNode("//telecom[@use='HP']")