* D = Drugs
* E = Electrolyte abnormality
* L = Low oxygen saturation
* I = Infection
* R = Reduced sensory input
* I = Intracranial
* U = Urinary or renal retention
* M = Myocardial
The other options are not correct mnemonics for assessing delirium.

Credentialing takes place when an outside entity verifies the nurse practitioner's schooling, experience, and necessary minimum requirements for practicing as an NP.
Nurse practitioner core competencies include the following:
* Scientific foundations
* Leadership
* Quality
* Practice inquiry
* Technology and information literacy
* Policy
* Health delivery systems
* Ethics
* Independent practice

Medical care describes the goods and services that maintain, improve, or restore an individual's physical, social, or mental well-being.
Wellness describes the state these goods and services are intended to achieve. Health systems are the systems by which these goods are used to achieve wellness. Natural health can refer to an approach to health and wellness that relies on alternative medicine and therapies that are outside of mainstream medical care.

Biofeedback has the most evidence of effectiveness to date and teaches people to control autonomic functions such as breathing, heart rate, and perception.
Yoga and meditation both draw on elements of biofeedback but have less evidence at present. Biologic therapies such as herbs and vitamins have little supporting evidence.

One of the key responsibilities of a PMHNP is to advocate for the patient's best interests. This includes listening to the patient's concerns and working with them to find a treatment plan that addresses those concerns while still ensuring their condition is managed effectively.
The other options do not show patient advocacy. Ignoring the patient's concerns, encouraging the patient to stop taking medication against the PMHNP's advice, or discharging the patient from care would not be appropriate options for the PMHNP and would not be in the best interest of the patient.