B.Sc Nursing
🔴 Infection: Definition, Sources, Chain & Types – Essential Nursing Notes
Infection in nursing: Learn about its definition, sources, transmission chain, and types. Essential study notes for nursing students.
Learn about infection, its definition, sources, chain of infection, and types. Essential nursing notes for students with simple explanations.
Table of Contents
Infection: Definition, Sources, and Nature
What is an Infection?
An infection is the invasion and multiplication of harmful microorganisms (bacteria, viruses, fungi, protozoa, rickettsia) in the body, causing disease. It can be localized (affecting one area) or generalized (spreading throughout the body).
Common Symptoms of Infection:
- Pain
- Swelling
- Redness
- Fever (high temperature)
- Increased pulse rate
- Leukocytosis (high white blood cell count)
Sources of Infection
1. Human Sources:
- Infected individuals (patients, healthcare workers, visitors)
- Carriers (people who harbor pathogens without symptoms)
- Normal flora (microbes normally present in the body but can become infectious)
2. Environmental Sources:
- Soil (e.g., anthrax, tetanus)
- Water (e.g., cholera, hepatitis viruses)
- Food (e.g., salmonella, contaminated pork)
- Insects (e.g., malaria, dengue)
- Inanimate objects (fomites) (e.g., hospital equipment, contaminated surfaces)
Nature of Infection
1. Infectious Agents: Microorganisms that cause diseases are called pathogens. If they spread easily from person to person, they are called communicable diseases.
2. Colonization vs. Infection:
- Colonization: Microbes grow on/in the body but do not cause disease.
- Infection: Microbes invade tissues and cause harm.
3. Body’s Defense Mechanisms Against Infection:
- Skin: Acts as a protective barrier; constantly sheds dead cells.
- Mucous Membranes: Trap microbes and prevent entry.
- Tears & Saliva: Wash away harmful particles.
- Stomach Acid: Kills bacteria in food.
- Cilia in Airways: Remove microbes before they reach the lungs.
- Immune System: Fights off infections through white blood cells and antibodies.
Routes of Infection Entry
- Skin (cuts, wounds, insect bites)
- Respiratory System (airborne infections like tuberculosis, COVID-19)
- Digestive System (contaminated food and water, causing cholera, typhoid)
- Urinary & Genital Tract (sexually transmitted infections)
- Bloodstream (through needles, transfusions, or insect bites)
Prevention of Infections
- Hand hygiene (washing hands with soap)
- Proper food handling (avoiding contaminated food/water)
- Vaccination (protecting against communicable diseases)
- Use of protective equipment (gloves, masks, sterilization in healthcare settings)
- Safe sex practices (using protection to prevent STDs)
- Insect control (mosquito nets, repellents to prevent malaria, dengue)
Chain of Infection
A susceptible host or the presence of a pathogen alone does not guarantee an infectious process. The chain of infection describes how an infectious process develops. It involves an interaction between the agent, host, and environment. Several essential elements, or “links in the chain,” must be present for microorganisms to be transmitted and cause infection. Understanding this process helps in controlling or eliminating microorganisms by breaking the links in the chain.

Links in the Chain of Infection:
- Infectious Agent
- Reservoir
- Portal of Exit
- Mode of Transmission
- Portal of Entry
- Susceptible Host
1. Infectious Agent
The infectious agent is the microorganism responsible for causing disease. Its ability to thrive depends on three factors:
- Virulence: Severity or harmfulness of the microorganism.
- Invasiveness: Ability to enter tissue.
- Pathogenicity: Ability to produce or cause disease.
Types of Infectious Agents:
- Viruses: Obligate intracellular agents requiring host machinery for replication. Classified by their nucleic acid type (DNA or RNA) and capsid shape.
- Bacteria: Unicellular organisms without chlorophyll, possessing both DNA and RNA. Classified by shape as cocci (spherical) or bacilli (rod-shaped).
- Fungi: Eukaryotic organisms lacking chlorophyll, reproducing by budding or spore formation. Types include molds, yeasts, yeast-like fungi, and dimorphic fungi.
- Protozoan Parasites: Single-celled eukaryotes that cause diseases and are often transmitted by insect vectors.
- Helminths: Multicellular parasitic worms with complex life cycles. Includes roundworms, flatworms, and flukes.
2. Reservoir
A reservoir is a place where microorganisms can thrive and reproduce. It can be:
- Animate: Humans, animals, birds, and insects.
- Inanimate: Soil, water, food, feces, intravenous fluids, and medical equipment.
Types of Carriers:
- Healthy Carrier: Harbors the pathogen without symptoms.
- Convalescent Carrier: Recovered but still carries the pathogen.
- Incubatory Carrier: Infectious before symptoms appear.
- Inapparent Carrier: Transmits infection without developing symptoms.
- Chronic Carrier: Recovered but continues to carry the pathogen.
Human Reservoirs and Transmission:
Reservoir | Transmission Vehicle | Infectious Agent |
---|---|---|
Blood | Needle stick, contaminated equipment | Hepatitis B, C, HIV/AIDS, S. aureus |
Tissue | Wound drainage | S. aureus, E. coli, Proteus species |
Respiratory Tract | Airborne droplets | Influenza, SARS, Klebsiella, S. aureus |
Gastrointestinal Tract | Vomitus, feces, saliva | Hepatitis A, Shigella, Salmonella |
Urinary Tract | Urine | E. coli, Enterococci, Pseudomonas |
Reproductive Tract | Urine, semen | N. gonorrhoeae, T. pallidum, Herpes simplex, Hepatitis B |
3. Portal of Exit
The portal of exit is the path through which pathogens leave the reservoir. Examples include:
- Respiratory Tract: Exhaled droplets (coughing, sneezing, talking, breathing).
- Gastrointestinal Tract: Stool, vomit (e.g., Hepatitis A).
- Skin: Wound drainage or lesions.
- Blood: Transmission through transfusion or direct contact.
4. Mode of Transmission
The mode of transmission describes how the infectious agent moves from the portal of exit. It travels to the portal of entry of a new host. The five primary transmission modes include:
a) Contact Transmission:
- Direct Contact: Physical transfer via touching, kissing.
- Indirect Contact: Transfer through contaminated objects like linens, dressings, and medical equipment.
b) Droplet Transmission:
- Infectious droplets from sneezing, coughing, or talking.
- Occurs within a 3-foot range.
c) Airborne Transmission:
- Inhalation of droplet nuclei or dust particles containing infectious agents (e.g., tuberculosis, measles, varicella).
d) Vector Transmission:
- Transmission by insects like mosquitoes (e.g., malaria) and fleas (e.g., plague).
e) Vehicle Transmission:
- Contaminated food, water, milk, drugs, or blood (e.g., hepatitis, HIV via blood transfusion).
5. Portal of Entry
The portal of entry is how the infectious agent enters a new host. Entry occurs through:
- Natural Orifices: Mouth, nose, vagina, urethra, ear, rectum.
- Artificial Orifices: Tracheostomy, ileostomy, colostomy.
- Mucous Membranes: Eyes, nasal passages, oral cavity.
- Skin Breaks: Cuts, wounds, invasive procedures.
- Ingestion & Inhalation: Swallowing contaminated food/water or breathing in infectious particles.
6. Susceptible Host
A susceptible host lacks immunity or has a weakened immune system, allowing infection to develop. Factors influencing susceptibility include:
- Age: Infants and the elderly have weaker immune responses.
- Chronic Diseases: Conditions like diabetes, cancer, and HIV/AIDS.
- Immunosuppressive Therapy: Chemotherapy, steroids, organ transplants.
- Malnutrition: Poor nutrition weakens the immune system.
Breaking the Chain of Infection
Preventing infection involves breaking any link in the chain:
- Eliminate Infectious Agents: Proper sterilization, hand hygiene, and disinfectants.
- Control Reservoirs: Isolate infected individuals, ensure food safety.
- Block Portals of Exit: Cover coughs and sneezes, use PPE.
- Interrupt Transmission: Hand hygiene, safe injection practices.
- Protect Portals of Entry: Proper wound care, safe catheter insertion.
- Boost Host Defenses: Vaccination, healthy lifestyle, adequate nutrition.
Types of Infection
- Acute Infection: Sudden onset, rapid progression, and severe symptoms lasting no more than six months.
- Chronic Infection: Slow progression with symptoms developing gradually over weeks or months and slow to resolve.
- Primary Infection: The initial infection in an otherwise healthy individual.
- Secondary Infection: Occurs during or after treatment for another infection due to immune system changes.
- Localized Infection: Restricted to a specific region in the body with local symptoms.
- Systemic Infection: Spreads throughout the body, affecting multiple regions.
- Clinical Infection: Shows observable and diagnosable signs and symptoms.
- Subclinical Infection: Few or no obvious symptoms; may be an early or mild stage of infection.
- Opportunistic Infection: Occurs more frequently in individuals with weakened immune systems.
- Nosocomial Infection: Acquired in a hospital environment.
- Focal Infection: Localized but can spread to other organs or structures.
- Cross Infection: Transmitted between patients via people, tools, or equipment.
- Iatrogenic Infection: A type of nosocomial infection caused by medical procedures.
- Endogenous Infection: Caused by infectious agents already present in the body.
- Exogenous Infection: Caused by pathogens from the external environment.
- Latent Infection: Remains dormant in tissues and becomes active when host resistance is lowered.
Stages of Infection
- Incubation Period: Time between exposure to the pathogen and the first symptoms.
- Prodromal Stage: Non-specific symptoms appear before more specific symptoms develop.
- Illness Stage: The acute phase with the most severe symptoms.
- Convalescence Stage: Symptoms disappear, and recovery begins.
Factors Increasing Susceptibility to Infection
- Age: Infants and older adults have weaker immune defenses.
- Sex: Some infections affect different sexes at varying frequencies.
- Heredity: Genetic factors influence susceptibility to infections.
- Stress: High stress levels weaken the immune system.
- Nutritional Status: Poor nutrition impairs immune function.
- Current Medical Therapy: Certain treatments weaken immune responses.
- Medications: Some medications suppress immune activity.
- Cancer: Certain cancers increase infection risk.
- Preexisting Medical Conditions: Chronic diseases can weaken immunity.
- Radiation: Destroys immune cells, increasing vulnerability to infection.
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B.Sc Nursing
Utilize Community Resources: Trauma, Ambulance & Elderly Care (2025)
Learn how trauma services, ambulance support, old age homes, orphanages, and HelpAge India can provide essential aid for individuals and families in need.

Learn to use community resources to enhance self and family well-being. These resources include trauma services, ambulance support, old age homes, orphanages, and HelpAge India.
Table of Contents
Trauma Services
Trauma services help victims of road accidents by providing timely medical care.
Key Strategies in India
- Golden Hour Treatment: Quick medical care within the first hour after an accident.
- Ambulance Availability: Basic life support ambulances every 50 km on highways.
- Trauma Care Facilities: Upgraded hospitals every 100 km.
- Communication Network: Public access to trauma care through emergency calls.
- Training for Professionals: Doctors, nurses, and paramedics receive special trauma training.
- Injury Surveillance System: National database for injury and trauma tracking.
- Public Awareness: Promoting road safety and injury prevention.
Trauma System Design
- No victim should travel more than 50 km for care.
- A trauma center should be available every 100 km.
Levels of Trauma Care Facilities
- Level IV: Mobile hospitals/ambulances for first aid.
- Level III: District/Taluka hospitals (100–200 beds) for initial stabilization.
- Level II: Medical college hospitals (300–500 beds) for serious trauma cases.
- Level I: Advanced hospitals for complex injuries with specialist doctors.
Ambulance Services (Under National Health Mission)
- Dial 108: For critical care, trauma, and accident victims.
- Dial 102: For pregnant women (institutional delivery) and sick infants.
The Ministry of Health and Family Welfare manages the National Trauma Registry to track and improve trauma care services.
Old Age Homes
Old age homes provide shelter, medical care, and social support. They serve senior citizens without family support. They also accommodate those who choose not to live with relatives.
Key Features of Old Age Homes in India
- Found in states like Delhi, Kerala, Maharashtra, and West Bengal with good facilities.
- Equipped with medical care, ambulances, and nutritious meals.
- Operated by NGOs—some are free, while others charge a fee.
- Paid homes may include telephone, internet, and better amenities.
- Some function as daycare centers, offering social interaction.
- Residents share their experiences, reducing loneliness.
Help Age India
- Established in 1978, it is a leading charity for elderly care.
- Works for medical aid, poverty relief, and income support.
- Lists 484 old age homes across 16 cities on its website.
Tamaraikulam Elders Village (TEV) – Cuddalore
- Free stay for rural elderly (100 inmates).
- Self-sufficient: Residents manage livestock, fish ponds, vegetable plots, and rice fields.
- Handicraft Production: Makes toiletries, ropes, bags, and pickles for income.
- Healthcare facilities and active ageing programs.
- Celebrates festivals and social events.
Kalyan Ashram, Kolkata
- A two-story care home for elderly women in Chetla.
- Can accommodate 10 residents.
Other Services by Help Age India
- Mobile healthcare, cataract surgeries, physiotherapy, cancer care, health camps, and disaster relief.
Orphanages
Orphanages provide shelter, food, and care for children who have lost one or both parents.
Global Statistics
- Around 153 million children worldwide have lost at least one parent.
- 17.8 million have lost both parents.
Definition of Orphans
- Single Orphan: A child who has lost one parent.
- Double Orphan: A child who has lost both parents.
Causes of Child Separation from Parents
- Poverty and lack of basic needs.
- Child abuse (physical, emotional, or psychological).
- Neglect by parents.
- Diseases and disabilities.
- Disasters (floods, storms, etc.).
- Kidnapping or bad company.
Challenges in Orphanages
- Provide basic needs but may lack emotional care.
- Large numbers of children make individual attention difficult.
- Lack of family love, warmth, and emotional bonding.
Adoption
- Some orphans are legally adopted, and adoptive parents take full responsibility.
- Without proper care, some orphans may fall into antisocial activities and end up in remand homes.
Borstals
- A rehabilitation facility between a school and an adult prison.
- For boys above 16 years who misbehave or cannot be managed in certified schools.
- Provides training and reformation instead of punishment.
Remand Homes
- Aim to improve the mental and physical well-being of children in custody.
- Care provided by doctors, psychiatrists, and trained personnel.
- Children receive basic schooling, art & craft activities, and recreational opportunities.
Homes for Physically and Mentally Challenged Individuals
- Offer 24×7 care with both paid and free services.
- Day care centers allow parents/caregivers to bring individuals for training and support.
- Help individuals develop skills, education, and employment opportunities.
Key Activities in These Homes
- Screening of newborns for disabilities.
- Support services for parents of disabled children.
- Job-oriented training programs.
- Self-help group formation.
- Parent support groups (PSCs).
- Therapies provided:
- Physiotherapy
- Speech therapy
- Occupational therapy
- Hydrotherapy
- Medical care
National Institute for Empowerment of Persons with Multiple Disabilities (NIEPMD)
- Established: 2005 in Chennai, Tamil Nadu.
- Services provided:
- Physiotherapy
- Occupational therapy
- Psychological intervention
- Special education
- Community outreach programs
Indira Awaas Yojana (IAY)
- A centrally sponsored housing scheme for rural poor.
- Provides free housing to those below the poverty line.
- Unit cost:
- ₹20,000 in plains
- ₹22,000 in hilly/difficult areas
- 3% of funds are reserved for housing disabled individuals.
Adhar
Adhar is an institution founded by parents of special children. The association began in 1990 as the “Association of Parents of Mentally Retarded Children.” It aims to support and empower children with special needs.
Activities at Adhar
Children receive vocational training based on their physical and mental abilities, including:
- Handicraft production: Chalk sticks, candles, paper bags, incense sticks (agarbatti), dusters, mats, and decorated earthen lamps (Diwali).
- Creative work: Wall hangings and other decorative items.
- Work schedule: 3:00 AM to 4:30 PM.
The Banyan
The Banyan is a non-governmental organization (NGO) providing a continuum of care for people with mental illnesses. It operates mainly in Chennai and Maharashtra, offering rehabilitation, treatment, and community-based care for individuals affected by mental health disorders.
Karuna Home
Karuna Home is a rehabilitation and residential center for young individuals with physical and/or mental disabilities from Tibetan refugee families in India.
Key Features
- Located in South India, near Tibetan refugee settlements and major Tibetan monasteries.
- Provides care for residents from both South and North India.
- Supports individuals with autism, Down syndrome, cerebral palsy, polio, and other disabilities.
- Encourages community involvement and inclusion.
Home for Destitute
These homes provide shelter for individuals without family or social support. They offer food and care for individuals without family or social support, including men, women, children, and the elderly.
Objectives and Services
- Psychological support to boost confidence and self-esteem.
- Empowerment programs for sick, poor, and abandoned individuals.
- Basic needs: Shelter, food, clothing, and healthcare.
- Health and well-being: Focus on physical and mental health.
- Independent living support for daily activities.
- Family reunification when possible.
- Social, economic, and physical security for residents.
- Quality of life enhancement through skill-building and engagement activities.
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Vital Signs
Vital Signs: Normal Ranges, Guidelines & Temperature Regulation
✅ “Vital signs are key indicators of health, including body temperature, pulse, respiration, and blood pressure. Learn the normal ranges, measurement guidelines, and how the body regulates temperature.”

✅ “Learn about vital signs, their normal ranges, guidelines for measurement, and body temperature regulation, including physiology and abnormalities.”
Table of Contents
Vital Signs
What are Vital Signs?
Vital signs are key indicators of a person’s basic body functions. They help assess overall health and detect medical conditions early. The four main vital signs are:
- Body Temperature – Measures heat inside the body.
- Pulse (Heart Rate) – Number of heartbeats per minute.
- Respiration Rate – Number of breaths per minute.
- Blood Pressure – The force of blood against artery walls.
Importance of Vital Signs
- Help in early detection of diseases.
- Monitor response to treatments.
- Guide doctors and nurses in making decisions about care.
Guidelines for Taking Vital Signs
- Use proper equipment (thermometer, stethoscope, blood pressure monitor).
- Understand normal ranges and recognize abnormalities.
- Measure vital signs accurately and regularly.
- Report any unusual findings to senior nurses or doctors.
- Record vital signs correctly for future reference.
When to Check Vital Signs?
- On hospital admission.
- Before and after surgery or procedures.
- After giving medications affecting heart or breathing.
- When a patient’s condition changes.
- As per doctor’s instructions.
Normal Ranges of Vital Signs
- Temperature: 97°F – 99°F (36.1°C – 37.2°C)
- Pulse Rate: 60 – 100 beats per minute
- Respiration Rate: 12 – 20 breaths per minute
- Blood Pressure: 90/60 mmHg to 120/80 mmHg
Body Temperature
Body temperature is the measure of heat inside the body. It is the balance between heat produced and heat lost. The normal body temperature is 36-38°C (96.8-100.4°F), with an average of 37°C (98.6°F).
Physiology of Body Temperature
What is Body Temperature?
Body temperature is the measure of how well the body produces and loses heat. The body maintains a safe temperature range, even when the external temperature changes.
How the Body Regulates Temperature
- When too hot:
- Blood vessels widen (vasodilation) to release excess heat.
- Sweat glands produce sweat, which cools the body as it evaporates.
- When too cold:
- Blood vessels narrow (vasoconstriction) to conserve heat.
- Muscles shiver to generate more heat.
Normal Body Temperature
- Varies based on time, location, and person.
- Generally ranges from 36°C to 38°C (96.8°F to 100.4°F).
- The average oral temperature for a healthy adult is 37°C (98.6°F).
Abnormal Body Temperature
- Hyperthermia: Body temperature higher than normal (fever, heatstroke).
- Hypothermia: Body temperature lower than normal (cold exposure).
Types of Body Temperature
- Core Temperature
- Temperature of deep body tissues (brain, chest, abdomen).
- Stays stable at around 37°C (98.6°F).
- Measured by medical devices inside the body (esophagus, bladder).
- Surface Temperature
- Temperature of the skin and fat layer.
- Changes with the environment.
- Measured at the skin, armpit (axilla), or mouth (oral temperature).
✅ Key Fact: Oral temperature is commonly used, with an adult’s normal range being 36.7°C (98°F) to 37°C (98.6°F).
Regulation of Body Temperature (Thermoregulation)
- Controlled by: The hypothalamus, which detects temperature changes and sends signals to regulate heat.
1. Neural and Vascular Control
- Neural Control: Hypothalamus processes signals from temperature receptors and sends nerve impulses to adjust heat.
- Vascular Control:
- When Hot: Blood vessels dilate, sweat increases to cool the body.
- When Cold: Blood vessels constrict, shivering occurs, and hormones like epinephrine are released to produce heat.
2. Heat Production (Thermogenesis)
- Heat is produced by:
- Metabolism (Oxidation of Food): Energy is released from carbohydrates, fats, and proteins.
- Exercise: Increases metabolic rate and heat production.
- Hormones: Thyroid hormones, adrenaline, and testosterone increase heat.
- Shivering: Involuntary muscle activity that generates heat.
- Non-shivering Thermogenesis: Found in newborns using brown fat to generate heat.
- Diseases: Infections and fever increase body temperature.
- Environmental Changes: Extreme heat or cold affects body temperature.
- Emotions: Stress, anxiety, and excitement increase heat production.
3. Heat Loss (Thermolysis)
1. Heat Loss Mechanisms
The body loses heat mainly through the skin (90-95%) and lungs. Heat is transferred from the body’s core to the skin via blood circulation. The skin plays a key role in regulating body temperature.
When the body temperature increases:
- Blood vessels dilate, making the skin warm and red.
- Heat is lost through radiation, conduction, convection, and evaporation.
When the body temperature decreases:
- Blood vessels constrict, keeping warm blood deeper inside the body to reduce heat loss.
2. Methods of Heat Loss
🔹 Radiation – Heat transfer without direct contact.
- Heat moves from the body to cooler surroundings.
- Example: Sitting in a cool room leads to heat loss.
🔹 Conduction – Heat transfer through direct contact.
- Heat moves from the body to cooler objects.
- Example: Lying on a cold surface results in heat loss.
🔹 Convection – Heat loss through air movement.
- Warm air around the body is replaced by cooler air.
- Example: A fan increases heat loss.
🔹 Evaporation – Heat loss through sweat and breathing.
- Sweat evaporates, cooling the body.
- Example: Sweating during exercise reduces body heat.
3. Behavioral Control of Body Temperature
Humans adjust their behavior to regulate body temperature based on:
- Environmental temperature
- Comfort level
- Emotional state
- Activity level
Infants and older adults may need help adjusting to temperature changes.
4. Thermoregulation by the Hypothalamus
The hypothalamus regulates body temperature through:
- Cold response: Vasoconstriction, shivering, increased metabolism.
- Heat response: Vasodilation, sweating, reduced activity.
Factors Affecting Body Temperature
Body temperature is influenced by various factors that affect heat production and heat loss. Nurses must consider these factors when assessing temperature changes.
1. Age
- Newborns: Have an immature thermoregulation system. Their body temperature ranges from 35.5° to 37.5°C. They lose 30% of body heat through the head.
- Children: Temperature regulation remains unstable until puberty.
- Older Adults: Have a lower average body temperature (36°C) due to reduced fat, decreased activity, and poor diet.
2. Exercise
- Physical activity increases body temperature by raising metabolism.
- Strenuous exercise, like running, can increase body temperature up to 41°C (105.8°F).
3. Hormones
- Women experience temperature changes due to hormones.
- During ovulation, increased progesterone raises body temperature by 0.3-0.6°C.
- Menopause causes hot flashes due to unstable vasomotor control.
4. Circadian Rhythm
- Body temperature follows a 24-hour cycle.
- Lowest between 1-4 AM.
- Highest around 6 PM.
- People who work night shifts take 1-3 weeks to adjust their temperature cycle.
5. Stress
- Physical and emotional stress stimulate the sympathetic nervous system, increasing metabolism and heat production.
- Anxiety before a hospital visit may cause a temporary rise in temperature.
6. Environment
- Extreme temperatures affect infants and older adults the most due to weaker thermoregulation.
- Hot environments can increase body temperature.
- Cold environments can lower body temperature due to heat loss.
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Nursing Foundation
UNIT 6 : VITAL SIGNS – INDEX
✅ “Learn vital signs in detail with these 6th unit notes for 1st semester B.Sc Nursing. Covers temperature, pulse, respiration, blood pressure, and more.”

✅ “Get detailed 6th unit notes on vital signs for 1st semester B.Sc Nursing students. Covers temperature, pulse, respiration, blood pressure, and documentation.”
6th Unit Vital Signs Notes for 1st Semester B.Sc Nursing Students
Chapter Section |
---|
Guidelines for Taking Vital Signs |
Body Temperature |
– Definition, Physiology, Regulation, Factors Affecting |
– Assessment: Sites, Equipment, and Technique |
– Temperature Alterations |
– Fever/Pyrexia: Definition, Causes, Stages, Types, and Nursing Management |
– Hot and Cold Applications |
Pulse |
– Definition, Physiology and Regulation, Characteristics, Factors Affecting Pulse |
– Assessment: Sites, Equipment, and Techniques |
– Alterations in Pulse |
Respiration |
– Definition, Physiology and Regulation, Mechanics of Breathing, Characteristics, and Factors Affecting Respiration |
– Assessment of Respiration: Techniques |
– Arterial Oxygen Saturation |
– Alterations in Respiration |
Blood Pressure |
– Definition, Physiology and Regulation, Characteristics, and Factors Affecting Blood Pressure |
Documenting Vital Signs |
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