25,729 articles
Nuclear bag fiber
Nuclear bag fibers are the large intrafusal muscle fibers of the muscle spindle, with nuclei clumped in an equatorial bag; they comprise dynamic bag1 and static bag2 types serving velocity and length sensitivity.
Nuclear Events (kinase and transcription factor activation)
Nuclear Events (kinase and transcription factor activation), Reactome pathway R-HSA-198725: human neurotrophin/NTRK1 signaling in which MAPK-family kinases phosphorylate nuclear transcription factors such as CREB1 and ELK1, inducing immediate-early and delayed-early genes.
Nuclear medicine
Nuclear medicine: medical specialty using radiotracers and radiopharmaceuticals for diagnosis and therapy, including PET/CT, SPECT, FDG imaging, radioiodine, Lu-177 theranostics, and PSMA-targeted prostate cancer therapy.
Nuclear stress test
A nuclear stress test is a cardiac imaging procedure that combines exercise or drug-induced stress with a radioactive tracer to diagnose and risk-stratify coronary artery disease.
Nucleic acid amplification test
A nucleic acid amplification test (NAAT) is a diagnostic method that detects a pathogen by copying its DNA or RNA many times, most commonly using PCR, and reports a qualitative or quantitative result.
Nucleic acid sequence-based amplification
Nucleic acid sequence-based amplification (NASBA) is an isothermal laboratory method that exponentially amplifies RNA at about 41 °C, widely used to detect RNA viruses and viable bacteria.
Nucleus accumbens
Nucleus accumbens (NAc, NAcc), ventral striatum region with core, shell, and rostral pole subdivisions; GABAergic MSNs receiving VTA dopamine and prefrontal glutamate; central to reward, motivation, addiction relapse, and DBS targets.
Nugent score
The Nugent score is a microscopic method that grades bacteria on a Gram-stained vaginal smear to diagnose bacterial vaginosis, with scores of 7 or higher indicating BV.
Numeric rating scale
The numeric rating scale is a self-report pain measure in which a patient rates pain intensity by choosing a number from 0 to 10, standard in clinical trials since 2005.
Nummular dermatitis
Nummular dermatitis (nummular eczema, discoid eczema): chronic itchy coin-shaped eczematous plaques on the limbs of middle-aged and older adults; clinical diagnosis, topical corticosteroids first-line, no FDA-approved therapies.
Nurse Administrators
Nurse administrators are registered nurses who have advanced into formal leadership roles, overseeing staff, operations, and budgets in healthcare settings, with titles ranging from nurse manager to chief nursing officer.
Nurse anesthetist
A nurse anesthetist, known in the United States as a Certified Registered Nurse Anesthetist (CRNA), is an advanced practice registered nurse who specializes in giving anesthesia.
Nurse educator
Nurse Educator is a bimonthly peer-reviewed journal on nursing education, founded 1976 by John Watkins, published by Lippincott Williams & Wilkins/Wolters Kluwer, ISSN 0363-3624, editor Marilyn H. Oermann since 2014, 2024 impact factor 3.0.
Nurse practitioner
Nurse practitioner (NP), also called certified nurse practitioner, an advanced practice registered nurse with graduate education and board certification who diagnoses, treats, and prescribes; created 1965 by Loretta Ford and Henry Silver; 336,300 US jobs in 2025; full practice authority in 27 states plus DC.
Nurse Specialists
Nurse specialists are nurses whose practice is limited to a particular area or discipline of medicine; in the US the clinical nurse specialist is one of four APRN roles under the 2008 Consensus Model, with graduate education, certification, and state-variable prescriptive authority.
Nurse triage
Nurse triage is the rapid assessment a nurse performs when a patient arrives at an emergency department, assigning an acuity category that determines the order of care.
Nurse's Role
Nurse's Role (MeSH D024802): the expected function of a member of the nursing profession, covering nursing definitions, scope of practice, APRN roles, licensure, standards documents, and evidence on nurse-led care outcomes.
Nurses
Nurses are healthcare professionals qualified by accredited nursing school and a national licensing exam, and the largest occupational group in the health sector, at 29.8 million in 2023.
Nurses' Health Study
The Nurses' Health Study is an American cohort study, begun in 1976 with 121,700 nurses, that examines how diet, lifestyle, and other factors affect long-term health in women.
NURSEXPERIENCE study
NURSEXPERIENCE (NCT06264037) is a qualitative phenomenological study at IRCCS San Camillo, Venice, on the hospitalization experience of neurorehabilitation patients with stroke, multiple sclerosis, Parkinson's disease, or post-oncological neurosurgery; 37 patients interviewed, five themes reported.
Nursing
Nursing: regulated health profession of autonomous, collaborative care across all settings; nearly 50% of the global health workforce, 29.8 million nurses in 2023, founded as a modern profession by Florence Nightingale.
Nursing Assistants
Nursing assistants (CNAs, nursing aides) are unlicensed caregivers providing basic care and activities of daily living under licensed nurses' supervision; about 1.5 million U.S. jobs, median pay $42,260 (May 2025), state certification required.
Nursing Care
Nursing care is person-centered, evidence-informed care by nurses, the largest health occupational group (29.8 million in 2023). Covers the nursing process, Nightingale's 1860 founding school, staffing-outcome evidence, and global workforce shortages.
Nursing care plan
A nursing care plan is a structured document recording a patient's priority problems as nursing diagnoses, with goals, planned interventions, and evaluation of the response.
Nursing diagnosis
A nursing diagnosis is a standardized clinical judgment about a person, family, or community's response to a health condition, chosen from an approved classification and treated independently by nurses.
Nursing home
Nursing home: residential facility providing skilled nursing and long-term care, also called skilled nursing facility (SNF). Over 15,000 US Medicare/Medicaid-certified homes with ~1.2 million residents; 2024 federal minimum staffing rule of 3.48 hours per resident day was struck down.
Nursing Interventions Classification
The Nursing Interventions Classification (NIC) is a standardized, research-based taxonomy that names, defines, and codes nursing treatments, created at the University of Iowa and first published in 1992.
Nursing management (Nurs Manag (Harrow))
Nursing Management (Nurs Manag (Harrow), ISSN 1354-5760) is a peer-reviewed English nursing leadership journal begun in 1994, continuing Senior nurse, published by RCNi, MEDLINE-indexed, print ceased 2023.
Nursing management (Nurs Manage)
Nursing Management (Nurs Manage, ISSN 0744-6314) is a US monthly peer-reviewed journal for nurse leaders, founded 1981, published by Lippincott Williams & Wilkins, MEDLINE- and Scopus-indexed, distinct from the UK title and Wiley's Journal of Nursing Management.
Nursing Outcomes Classification
The Nursing Outcomes Classification (NOC) is a standardized, research-based classification of measurable patient outcomes for evaluating nursing care, first published in 1997 by University of Iowa researchers.