Pharmacokinetics involves absorption, distribution, metabolism, and excretion of a drug. Absorption is the method and rate at which drugs leave the site of administration. With oral medications, absorption normally occurs in the small intestine and then is ultimately metabolized by the liver.

Fish oil is a common non-psychoactive supplement used to cure symptoms of illness and maintain health.
Other common non-psychoactive dietary supplements with physiological (not psychological) effects used to cure illnesses and maintain health are as follows:
* Omega-3 fatty acids
* Tryptophan
* Vitamin E
* Melatonin
* SAM-e
St. John's wort is a psychoactive herbal supplement. Magnesium is an electrolyte supplement. Belladonna is a psychoactive herbal supplement.

Countertransference represents a nurse practitioner's emotional reaction to a patient based on past experiences. Signs that indicate the presence of countertransference include
* Intense emotional reactions during the first encounter with a patient
* Recurrent anxiety or uneasiness while dealing with a patient
* Uncharacteristic carelessness when following up with a patient
* Difficulty empathizing
* Resistance to others treating the patient
* Preoccupation with or dreaming about the patient
* Frequently running overtime or cutting time short with a patient
* Depression during or after an interaction with a patient
Following up with the patient via phone to reinforce the importance of medication adherence is not an example of countertransference.

Descriptive statistics are used to summarize and describe the characteristics of a dataset. They can provide insights into the central tendency, variability, and distribution of the data. In this scenario, the PMHNP is analyzing data from a study of depression symptoms in a sample of 100 patients. The PMHNP needs to use descriptive statistics to summarize the data.
The mean is a measure of central tendency that represents the average value of the data. It is calculated by adding all the values in the dataset and dividing them by the total number of values. The mean is a useful descriptive statistic for summarizing the data because it takes into account all the values in the dataset but may not adequately address potential outliers.

Crossing the Quality Chasm: A New Health System for the 21st Century identified six goals for the quality improvement of health care:
* Safe: Avoiding injuries to patients from the care intended to help them.
* Effective: Providing services based on scientific knowledge to all who could benefit, and refraining from providing services to those not likely to benefit.
* Patient-centered: Providing care that is respectful of and responsive to individual patient preferences, needs, and values, and ensuring that patient values guide all clinical decisions.
* Timely: Reducing waits and sometimes harmful delays for both those who receive and those who provide care.
* Efficient: Avoiding the waste of equipment, supplies, ideas, and energy.
* Equitable: Providing care that does not vary in quality because of personal characteristics such as gender, ethnicity, geographic location, and socioeconomic status.