What type of care is permitted under supportive care with a valid DNR?

Supportive care with a valid Do Not Resuscitate (DNR) order allows for certain medical interventions that align with the goal of providing comfort to the patient while respecting their wishes regarding resuscitation. In this context, options such as suctioning and administering medications fall under supportive care because these actions can help alleviate symptoms and maintain comfort without initiating advanced resuscitation efforts, which a DNR order explicitly avoids.

Suctioning can relieve airway obstructions and improve breathing, while administering medications can manage pain, anxiety, or other distressing symptoms. Therefore, these interventions are consistent with the principles of supportive care.

When considering the other options, providing only comfort measures might be too limiting, as certain medical actions that support comfort are allowable. Intravenous hydration alone does not fully encompass the range of support available. Lastly, all forms of advanced resuscitation are explicitly excluded by the DNR, reaffirming that these measures should not be taken under such orders. Thus, the correct answer reflects the balance between respecting the patient's wishes while still ensuring their comfort through permissible interventions.