Nurses are health care professionals who help people stay well, recover from illness, and manage injuries or long-term conditions. They observe patients, give treatments, explain care plans, and communicate with doctors, families, and other members of the health care team. Nursing matters because nurses often spend the most time with patients and are trained to notice small changes that can signal a serious problem.
This career connects science, communication, technology, and service.
Key Facts
- Nurses measure vital signs such as temperature, pulse, breathing rate, blood pressure, and oxygen saturation.
- Dosage calculation: dose to give = ordered dose ÷ available dose × amount available.
- IV flow rate: drops per minute = volume in mL × drop factor ÷ time in minutes.
- Common school subjects for nursing include biology, chemistry, anatomy, algebra, statistics, psychology, and English.
- Typical education paths include a practical nursing certificate, an associate degree in nursing, or a bachelor of science in nursing.
- Nurses work in hospitals, clinics, schools, community health centers, nursing homes, labs, home health, public health, and emergency settings.
Vocabulary
- Registered Nurse
- A registered nurse is a licensed health care professional who assesses patients, provides care, gives medicines, and teaches people how to manage their health.
- Vital Signs
- Vital signs are basic body measurements, such as temperature, pulse, breathing rate, blood pressure, and oxygen level, that show how a patient is doing.
- Patient Assessment
- Patient assessment is the process of collecting information about a patient through observation, questions, measurements, and physical checks.
- Care Plan
- A care plan is a written guide that describes a patient’s health needs, goals, treatments, and follow-up steps.
- Clinical Rotation
- A clinical rotation is supervised hands-on training where nursing students practice skills with real patients in health care settings.
Common Mistakes to Avoid
- Thinking nurses only follow doctors’ orders: nurses use their own clinical judgment to assess patients, prioritize care, and respond to changes.
- Ignoring math skills in nursing: dosage, IV rates, intake and output, and lab values all require careful calculations to keep patients safe.
- Assuming nursing only happens in hospitals: nurses also work in schools, research labs, public health programs, clinics, home care, and disaster response.
- Focusing only on kindness and not science: compassion is important, but nurses also need biology, chemistry, anatomy, technology skills, and evidence-based decision making.
Practice Questions
- 1 A nurse needs to give 500 mg of a medicine. The tablets available are 250 mg each. How many tablets should the nurse give?
- 2 An IV bag contains 1000 mL and must run over 8 hours. What is the flow rate in mL per hour?
- 3 A patient’s breathing rate, pulse, and skin color suddenly change after surgery. Explain why a nurse’s observation and communication skills are important in this situation.