Palliative Care Flashcards
What are medications are most appropriate in the setting of palliative care for in pain management?
Opioids are used for pain relief and dyspnea in end-of-life care. Includes long-acting (scheduled) and short-acting (as needed) options.
What is the mechanism of action of opioids?
Bind to opioid receptors (mu, kappa, delta) in the CNS, inhibiting pain transmission.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of opioids that need to be watched for?
Respiratory depression, constipation, nausea, sedation, miosis, opioid tolerance.
What is the preferred opioid for dyspnea and pain management in palliative care?
Morphine, a mu-opioid receptor agonist, reducing pain and dyspnea by decreasing respiratory drive.
What are the adverse effects of morphine?
Respiratory depression, hypotension, constipation, sedation, nausea.
Why would opioids still be given to patients despite respiratory depression?
Palliative care interventions are based on signs and symptoms of discomfort (eg, dyspnea, tachypnea) rather than with diagnostic testing or invasive procedures (although the tests may reveal abnormalities, their results usually do not influence clinical symptom management). Thus the main goal is to provide treatment of symptoms. For example patients with end-stage malignancy and acute respiratory failure that have been transitioned to palliative comfort care, the focus shifts toward treatment of symptoms (eg, dyspnea, secretions, pain, anxiety). Close observation for signs and symptoms of distress is the cornerstone of palliative care. Often times, these terminally patients will get extubated and given morphine for palliation of dyspnea at the end of life. There is a potential of developing expected adverse effects, including miosis and respiratory depression. However, if there are also signs of distress (ie, tachycardia, diaphoresis, inability to clear secretions) and active dying, including coma and agonal respirations (ie, irregular, rattling breaths), the patient’s comfort should be prioritized over his respiratory status in order to be consistent with the predefined goals of care. Administering additional morphine may hasten death, but it still should be given to minimize suffering. This ethical framework is known as the doctrine of double effect: Interventions that have adverse effects (eg, respiratory depression) are justified if they promote patient well-being (eg, allowing for a comfortable death).
What is hydromorphone used for in the setting of palliative care?
Used as an alternative to morphine for pain relief, especially in patients with opioid tolerance.
What is the mechanism of action of hydromorphone?
Mu-opioid receptor agonist, similar to morphine but more potent.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of hydromorphone that need to be watched for?
Stronger respiratory depression, sedation, nausea, pruritus, constipation.
What is glycopyrrolate used for in the setting of palliative care?
Used to reduce excessive respiratory secretions and ‘death rattle’.
What is the mechanism of action of glycopyrrolate?
Anticholinergic; inhibits muscarinic receptors, reducing secretions.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of glycopyrrolate that should be watched for?
Dry mouth, urinary retention, constipation, tachycardia.
What is scopolamine used for in the setting of palliative care?
Used for respiratory secretions and nausea in palliative care.
What is the mechanism of action of scopolamine?
Muscarinic antagonist; reduces secretions and has anti-nausea effects.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of scopolamine that should be looked for?
Confusion, dry mouth, blurry vision, urinary retention.
What is ondansetron used for in the setting of palliative care?
Used for nausea and vomiting management.
What is the mechanism of action of ondansetron?
5-HT3 receptor antagonist; blocks serotonin in the CNS and gut.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of ondansetron that should be watched for?
QT prolongation, constipation, headache, serotonin syndrome (rare).
What is metoclopramide used for in the setting of palliative care?
Used for nausea, gastroparesis, and opioid-induced delayed gastric emptying.
What is the mechanism of action of metoclopramide?
Dopamine (D2) receptor antagonist; increases gastric motility.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of metoclopramide that should be watched for?
Extrapyramidal symptoms (tardive dyskinesia, akathisia), QT prolongation, drowsiness.
What is chlorpromazine used for in end of life care?
Used for nausea, vomiting, and agitation in end-of-life care.
What is the mechanism of action of chlorpromazine?
Dopamine (D2) antagonist, also blocks histamine and muscarinic receptors.
Close observation for signs and symptoms of distress is the cornerstone of palliative care, what are the adverse effects of chlorpromazine that should be watched for?
Sedation, orthostatic hypotension, extrapyramidal symptoms, anticholinergic effects.