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Common Medical Terminologies Used in Nursing

Medical terminology in nursing makes everything click in the hectic world of healthcare. You can also call them a jumble of jargon transformed into a language that saves lives! Crazy, we know.

DJ

David Jones

Published February 28, 2025

Common Medical Terminologies in Nursing
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Common medical terms include BP, HR, IV, STAT, and PRN. These everyday pieces of nursing vocabulary form the very essence of nursing terminology. Without them, effective healthcare communication would just fall apart and that’s a risk we simply can’t take when patient safety in nursing is on the line!

In this blog, we’ll break down these key terms and by the end, you’ll feel confident using some of the medical terms to ensure smoother, safer interactions every day.

What is Medical Terminology in Nursing?

Medical terminology is the language healthcare professionals use to describe the body, illnesses, treatments, and procedures. It helps nurses communicate clearly, document patient information accurately, and ensure everyone understands what’s happening with a patient.

Common medical terms create a universal way for healthcare teams to share information quickly. This standardized nursing vocabulary helps prevent misunderstandings, improves patient safety in nursing, and keeps everything running smoothly in a busy healthcare setting.

Why Understanding Medical Terminology is Important in Nursing?

Patient Safety:

According to the UK National Reporting and Learning System (NRLS), miscommunication in healthcare contributes to nearly 30% of medication errors. Clear and accurate communication can be the difference between life and death. Misunderstanding a medical term could lead to medication errors, incorrect treatments, or delays in urgent care. 

 Imagine a nurse misreading Mg (milligrams) as Mcg (micrograms) on a prescription. Now, this tiny misunderstanding could lead to a patient receiving 1,000 times the intended dose of medication. Using the correct nursing terminology ensures every instruction is clear, reducing risks and improving patient safety in nursing.

Team Efficiency:

Whether it’s during shift handovers, charting, or emergency situations, using common medical terms in nursing keeps everything running smoothly, preventing misunderstandings that could delay critical care, standardized nursing vocabulary allows nurses, doctors, and other professionals to communicate quickly and effectively. 

When a nurse reports that a patient has “low BP, tachycardia, and is on PRN pain meds” without standardized healthcare communication, this information might be unclear or misinterpreted. However, when the team understands these terms, they can respond quickly and appropriately, preventing delays in critical care.

Reliable Data:

According to the NHS Patient Safety Strategy, communication failures account for up to 60% of serious adverse events in UK hospitals. Proper use of medical terminology ensures that patient records are accurate, reduces the risk of errors, and leads to better treatment outcomes. 

For example, if a nurse documents that a patient is “NPO”, meaning “nothing by mouth,” but another team member misinterprets the order and administers oral medication, it could result in some very serious complications. So, when healthcare teams use the right terms consistently, they create a safer environment for both patients and staff.

Common Medical Terminologies Every Nurse Should Know

Here are some of the common medical terms that every nurse should know:

General Medical Terms and Concepts

  • Acute: Describes conditions that have a sudden onset and are usually severe but short-lived.
  • Chronic: Refers to long-lasting or recurring conditions that require ongoing management.
  • Benign: Indicates a condition, often a tumour, that is non-cancerous and generally not harmful.
  • Malignant: Describes cancerous conditions that are potentially life-threatening and may spread.
  • Prognosis: A prediction of the likely course and outcome of a disease.
  • Aetiology: The study of the cause or origin of a disease.
  • Comorbidity: The presence of one or more additional conditions occurring with a primary condition.
  • Therapy: Treatment intended to relieve or cure a disorder.
  • ICU (Intensive Care Unit): A specialized unit for critically ill patients who require intensive monitoring and treatment.
  • GCS (Glasgow Coma Scale): A tool used to assess a patient’s level of consciousness, particularly after a head injury.
  • CPR (Cardiopulmonary Resuscitation): An emergency procedure used to restore breathing and circulation in a patient who has suffered cardiac arrest.
  • Suture: A stitch or row of stitches holding together the edges of a wound or surgical incision.
  • Asepsis: The state of being free from disease-causing microorganisms, crucial in preventing infections.
  • Ambulation: Refers to a patient’s ability to move or walk, crucial for recovery and mobility.
  • Informed Consent: The process of ensuring that a patient understands the risks and benefits of a procedure before agreeing to it.
  • Care Plan: A detailed strategy outlining patient care goals, interventions, and progress monitoring.
  • Shift Handoff: The transfer of patient information and responsibilities during shift changes.
  • Documentation: Accurate recording of patient data, critical for continuity of care.
  • Rounds: Regular check-ins by healthcare professionals to assess patient status and update care plans.
  • Admission: The process of formally accepting a patient into a healthcare facility for treatment.
  • Discharge: The process of releasing a patient from care, including instructions for follow-up.
  • Phlebotomy: The practice of drawing blood for laboratory testing.
  • Call Light: A device enabling patients to alert nursing staff when they need assistance.
  • Bedside Manner: The approach a nurse takes when interacting with patients, influencing comfort and trust.
  • Patient Advocacy: Supporting and representing a patient’s interests and rights within the healthcare system.

Vital Signs and Measurements

  • BP (Blood Pressure): The pressure of blood flow against arterial walls, which is crucial for evaluating cardiovascular health.
  • HR (Heart Rate): The number of heartbeats per minute, which is a vital sign of heart health.
  • O2 Sat (Oxygen Saturation): The blood’s oxygen content, as determined by a pulse oximeter to evaluate respiratory function.
  • RR (Respiratory Rate): The number of breaths per minute.
  • T (Temperature):  A measurement of body heat that is crucial for identifying illnesses and diseases.
  • SpO2 (Peripheral Oxygen Saturation): A metric used to measure blood oxygen levels and evaluate lung function.
  • MAP (Mean Arterial Pressure): The average pressure in a patient’s arteries, used to evaluate the perfusion of their organs.

Medication and Treatment Instructions

  • IV (Intravenous):  Giving drugs or fluids straight into the vein for quick absorption.
  • IM (Intramuscular): Medication given directly into a muscle for slower absorption than IV.
  • SC/SQ (Subcutaneous): Injection given under the skin, frequently used for vaccinations and insulin.
  • PRN (As Needed): Medications or treatments given only when necessary based on patient symptoms.
  • Rx (Prescription): A written order from a healthcare provider for medication or treatment.
  • STAT (Immediately): Used in urgent care when action is required without delay.
  • gtt (Drop): A device used to measure drops of liquid medication.
  • TID (Three Times a Day):  A typical prescription directive about the frequency of medication.
  • QID (Four Times a Day): A prescription order that specifies that a patient should take their medication four times a day.
  • BID (Twice a Day): Indicates medication should be taken two times daily.

Diagnostic and Laboratory Tests

  • CBC (Complete Blood Count): A test that counts platelets, haemoglobin, and red and white blood cells.
  • ECG/EKG (Electrocardiogram): Record of the heart’s electrical activity in order to identify any irregularities.
  • UA (Urinalysis): Looks for indications of metabolic problems, kidney disease, or infection in the urine.
  • CMP (Comprehensive Metabolic Panel): A blood test that assesses glucose levels, electrolytes, and liver and kidney function.
  • PT/PTT (Prothrombin Time/Partial Thromboplastin Time): Tests that measure blood clotting ability.
  • Hgb (Hemoglobin): Measures the amount of haemoglobin in the blood, important for diagnosing anaemia.
  • BUN (Blood Urea Nitrogen):  Measures waste in the blood to evaluate kidney function.
  • Cr (Creatinine): A blood test used to evaluate kidney function.
  • ABG (Arterial Blood Gas): Evaluates respiratory function by measuring blood pH, oxygen, and carbon dioxide levels.
  • ESR (Erythrocyte Sedimentation Rate): A test used to detect inflammation in the body.

Patient Care and Medical Orders

  • NPO (Nil Per Os): “Nothing by mouth,”  indicates that the patient can not consume any food or liquids.
  • DNR (Do Not Resuscitate): Legal directive that tells medical personnel not to undertake cardiopulmonary resuscitation (CPR) if a patient stops breathing.
  • LOC (Level of Consciousness): Assesses a patient’s awareness and alertness.
  • BRP (Bathroom Privileges): The term “bathroom privileges,” or BRP, refers to a patient’s ability to use the restroom on their own.
  • I&O (Intake and Output): Tracking urine production and fluid consumption to determine hydration levels.
  • ADL (Activities of Daily Living): ADLs, or activities of daily living, include things like eating, dressing, and taking a shower.
  • ROM (Range of Motion): Physical therapy frequently uses range of motion (ROM) to measure a patient’s joint mobility.
  • Foley (Foley Catheter): A type of catheter inserted into the bladder for urine drainage kind of catheter used to remove urine from the bladder.
  • Aspiration: When fluid or food enters the airway instead of the stomach, a risk for patients with swallowing difficulties.

Common Abbreviations in Nursing Documentation

  • Dx (Diagnosis): The identification of a disease or condition based on symptoms and test results.
  • Tx (Treatment): The plan of care, including medications, therapies, and procedures.
  • Hx (History): A patient’s medical background, including past illnesses and surgeries.
  • Sx (Symptoms): The signs or indicators of an illness, as reported by the patient.
  • Fx (Fracture): A broken bone, often classified by severity (e.g., compound, hairline).
  • C/O (Complains Of): Used to document patient-reported symptoms or discomfort.
  • R/O (Rule Out): Used when testing to confirm or exclude a possible condition.
  • VS (Vital Signs): A summary of the patient’s key measurements, such as BP, HR, RR, and temperature.
  • WNL (Within Normal Limits): Indicates that test results or patient conditions are within the expected range.
  • OTC (Over-the-Counter): Medications available without a prescription.

Enhance Your Medical Terminology Skills

Medical terminology in nursing makes everything click in the hectic world of healthcare. If you’re looking to brush up on this essential vocabulary, you might want to check out the Medical Terminology Training course. It’s a resource that breaks down everyday terms like BP, HR, IV, STAT, and PRN into something that really makes sense, helping ensure smoother, safer interactions on the floor.

FAQ

What are terminologies in nursing?

The specific medical terms used by nurses to enable efficient healthcare communication in clinical settings, accurately document patient care and communicate clearly are referred to as nursing terminology.

What is medical terminology in nursing?

The standardised language used to describe illnesses, therapies, procedures, and anatomy is known as medical terminology in nursing. It guarantees correct recordkeeping and improves patient safety.

What is Bio 100 medical terminology?

In order to assist students develop excellent nursing communication skills and comprehending common medical terminology in nursing, BIO 100 Medical Terminology is an introductory course that covers word roots, prefixes, and suffixes used in healthcare. 

What is basic medical terminology?

Fundamental terms and acronyms such as BP (blood pressure), HR (heart rate), and Dx (diagnosis) are part of basic medical language and are necessary for precise documentation and effective nursing communication in the healthcare industry.

Conclusion

Gaining fluency in medical language in nursing involves more than just word memorisation, it’s about enhancing patient safety, facilitating clear healthcare communication, and collaborating effectively with others. Every phrase contributes to improved patient care, from knowing key medical terms in nursing like blood pressure, intravenous, and STAT to adopting standardised nursing terminology in documentation. Nurses can improve teamwork, avoid mistakes, and confidently traverse the rapidly evolving healthcare industry by knowing and using these terminologies on a regular basis.

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