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Pathogens
Disease causing organisms
Types of Disease causing organisms
1. Bacteria
2. Virus
3. Fungi
4. Rickettsia
5. Protozoa
Bacteria
Can be pathogenic or non pathogenic
Classified by their shape: round, rod, and spiral
Treated with antibiotics
Examples of infections: tonsillitis, pneumonia, & ear infection
The body will produce antibodies to help fight off infection
Viruses
Smallest microbe- must use electron micoscope to see them
Can only live inside another living organism
Difficult to treat- antibiotics do not work on this
Antiviral drugs have been developed which work by inhibiting their development
Examples: chicken pox, Hepatitis B, measles, HIV/AIDS and COVID
Fungi
Two forms of ____ are potential pathogens- yeast and mold
Penicillin, important antibiotic, is produced from a mold
Example of fungi infections- ringworm, athlete's foot, and infections of the skin
Parasitic
pathogens that live in or on another organizm and take nutrients from it. It also injures or makes the host sick.
Rickettsia (type of parasite and bacteria)
Much smaller than bacteria
Rod or spherical shaped
Do not move independently
Must live inside the cell of another organism like a virus
Examples of diseases of ______- typhus and Rocky Mountain spotted fever.
Protozoa (type of parasite)
Classified as animals
Found in the environment, decayed materials, contaminated water and unwashed hands
Reside in and on the body
Examples of diseases- dysentery, toxoplasmosis, and malaria
Opportunistic infections-
infections that occurs in people with a weakened immune system.
Nosocomial (naa-suh-kow-mee-uhl) infection-
infection that is acquired while receiving health care. Patient did not have at time of admission.
What does MRSA (BACTERIA) stand for
resistant Staphyloccus aureus (MRSA) aka Superbug
MRSA (BACTERIA)
Staphyloccus aureus is normally found on people's skin. ______ has become resistant to many of the antibiotics normally used to treat infection.
Usually found in hospitals and other healthcare facilities
Can lead to sepsis or death
How to prevent pathogens
Treat all patients like they are infected at all times!
WASH HANDS frequently! Best way to stop the spread
Break the Chain of Infection
Wear PPE (personal protection equipment)- it prevents the spread of airborne, droplets, and contact infections
Vaccinations
Bacteria Infection Treatment:
Most bacteria can be treated by antibiotics. There are some bacteria that have become antibiotic resistant where normal antibiotics do not work on them. (ex: Methicillin-resistant Staphylococcus aureus or MRSA for short)
Viral Infection Treatment:
Antibiotics do not work on viral infections. Viruses are difficult to treat since antibiotics do not work on them. We have developed antivirals that reduce the length of infection.
Nosocomial Infections
are the result of infectious material carried by health care workers from one patient to another. It is acquired during the process of receiving health care and the infection was not present during the time of admission. This type of infections is increasing dramatically.
Medical asepsis
(clean technique) decreases pathogens. This kills some microorganisms to prevent them from spreading. Used in doctor's offices
Surgical asepsis
(sterile technique) eliminates pathogens. This completely kills and eliminates microorganisms. Used in hospitals.
Antiseptic-
kills/inhibits growth
of microorganisms on living beings
Disinfectant-
destroys most bacteria
and viruses on non-living things
Sterilization-
kills all microorganisms, used in professional settings such as hospitals
Body mechanics
the correct positioning of the body for a given task (lifting heavy objects or keyboarding)
Reaosn for using correct body mechanics
Muscles work best when used correctly
Correct use of muscles makes lifting, pulling, and pushing easier
Prevents unnecessary fatigue, strain, and saves energy
Prevents injury to self and others
Keep heavy objects close to your body
Health care workers perform body movements that can lead to injuries:
1. lifting patients
2. medical transcriptionist keyboarding for many hours each
day
3. surgical technicians standing during long operations
Risk factors of injury:
poor posture
poor body mechanics
low level of fitness
obesity
stress, both mechanical and psychological
Repetitive Motion Injuries (RMIs)-
injury based on the overuse of one part of the body. Motions that are repeated over and over.
Examples: carpal tunnel syndrome and tendonitis
How to Preventing RMIs:
warm up and stretch after repetitive activities or lack of movement
avoid staying in one position- move every 20-30 min
change positions or stop whenever activities cause pain
sit up straight at your desk
set up computer workstations that fit your physical needs
Exertion Injuries-
injury caused by lifting, pulling, and pushing. Back injury is the most common.
How to Preventing exertion injuries:
Warm up before and after activities that require lifting, pushing, or pulling
Avoid bending forward at the waist to lift an object
Use the largest joints and muscles to do the work (use leg muscles instead of back when lifting heavy objects)
Place feet 6 to 8 inches apart when lifting heavy objects
Push heavy objects instead of pulling
Enviromental safety
Remain calm!!!!
Walk, never run
Always report unsafe conditions and accidents immediately!
Report any accidents or injuries immediately and complete an incident report. (written document that explains what happened)
Fire needs?
oxygen, fuel, and heat in order to start.
Major causes of fire:
smoking
matches
misuse of electricity
defects in heating
spontaneous ignition
improper rubbis disposal
arson
RACE
Remove patients
Activate alarm
Contain the fire
Extinguish the fire or Evacuate the area
**Always crawl along the floor
PASS
Pull the pin
Aim the nozzle at the base of the fire
Squeeze the handle
Sweep back and forth along the base of
the fire.
Always aim the extinguisher at the base of the flames.
Material Safety Data Sheets (MSDS)
are guidelines that contain information of the potential hazards and how to work safely with the product. Required by OSHA.
MSDS must contain:
Product information about the chemical
Protection or precautions that should be used when handling chemicals
Instructions for safe use of the chemical
Procedures for handling spills, cleanup, and disposal of chemicals
Emergency First Aid procedures
______ is what you should use to determine how to clean up.
Always rinse eyes that have chemicals in them for 15 minutes!
What is Health Insurance ?
A plan that helps the consumer pay for medical costs.
*No plan pays 100%
WHY do we need health insurance
We need insurance to help with the rising costs of healthcare.
Examples:
Coronary Artery Bypass Graft cost $70,298
Knee Replacement cost $ 18,000
Can you afford to pay that?
EMTALA
federal law requires that hospital emergency departments treat emergency condition of all patients regardless of their ability to pay.
Law established no method of payment
Government programs never fully reimburse for this mandated care
Financial pressure on hospitals
Patients cannot pay bill, escape into bankruptcy
What does COBRA stand for
Consolidated Omnibus Budget Reconciliation Act (1986)
employee can pay to keep group health insurance for 18-36 months after leaving a job or losing health insurance
Patient Protection and Affordable Care Act:
Often called Affordable Care Act (ACA) or Obamacare
Law signed into law in 2010 by President Obama
What are the four goals of Patient Protection and Affordable Care Act
Make affordable health insurance available to more people
Expand Medicaid program to cover all adults with income below 138% Federal Poverty Level (FPL)
Support medical care delivery methods to help lower the cost of health care.
Access to insurance for those with pre-existing condition
Pre-existing condition
an illness already present when applying for a new insurance plan
Tort reform
laws limiting medical malpractice suit payments
DRGs
Diagnostic Related Groups – Medicare pays a set amount for specific classifications of diagnoses regardless of actual cost
Premium
amount you pay to belong to a health plan
Deductible :
amount you must pay each year before health plan begins paying
Co-insurance
percent of medical costs a person must pay after meeting deductible (ex: 20%)
Max Out of Pocket
the amount you have to pay out of pocket before insurance pays 100%.
Co-pay
set fee paid each time person receives medical care (ex: $10 per doctor visit)
Group Insurance
-Employer offers plan to workers
- Share cost of premiums
Individual Insurance
-Purchase plan directly from insurance company
-Pay own premiums
Fee- For- Service:
Can choose any provider
- Deductible
- Physicians set their own prices for services
- Has gotten too expensive for most people
Managed Care Plans
A “network” of providers on the plan
- Provides incentive to providers to cut costs
- Costs lower if use network providers
- No insurance claim forms
- Co-pays
HMO:
Health Maintenance Organization
- Receive most of care from primary care providers
(PCP) PCP coordinate health care needs of patients
to help control costs
- Specialists require a referral
- Will only pay for network providers
- Pays 100% for routine & preventative care
PPO:
Preferred Provider Organization
More flexible than HMO, also more expensive
- No referrals for specialists
- Can use network or non-network providers
- Pay more for non-network
Medicare
- Federal
- Health coverage for age 65 and older & people under 65 if they have end-stage renal disease or Amyotrophic Lateral Sclerosis (ALS)
- Plan A : hospital coverage / no premium
- Plan B : physician coverage, tests / premium / optional
- Plan C: (Medicare Advantage) People with Plans A & B can
choose to receive all of their health care services through a
provider organization (HMO or PPO)
- Plan D: prescription drugs
Medicaid
- Federal
- Administered by states
- Covers those under 65 with low income (pregnant
women and children), people who receive
Supplemental Security Income (SSI) which
includes the disabled and the blind
- Eligibility & benefits vary by state
SCHIP / CHIP:
- State Children’s Health Insurance Program
- State medical coverage for low income children who do not qualify for Medicaid
Worker’s Compensation
-Covers medical care for on-the-job injuries
-Covers part of wages lost due to injury
-Cost shared by state and employer
TRICARE
(formerly CHAMPUS: Civilian Health and Medical Program U.S.)
-Federal medical plan for active duty and retired military personnel, their dependents, and survivors
1847
First group policy offered by Massachusetts Health Insurance of Boston
1890
First individual policies covering disability & illness
1929
First modern group plan – group of Dallas teachers contracted with Baylor Hospital for medical services in exchange for a monthly fee
1932
Non-profit organizations Blue Cross and Blue Shield offered group plans negotiated with doctors & hospitals in return for increased volume & prompt payment
1939-1945
Government mandated wartime wage freezes accelerated the spread of group health care. Unable by law to attract workers by paying more, employers improved their benefit packages by adding health care.
1940’s-1950’s –
Unions bargained for better benefits, including tax-free employer-sponsored health insurance.
1954
Disability benefits were included in social security coverage.
1950’s-1960’s –
Government programs to cover health care costs began to expand.
1965
Medicare and Medicaid programs created
1980’s-1990’s
Cost of healthcare rapidly rose; majority of employer-sponsored group plans switched from “fee-for-service” plans to cheaper “managed care plans”.
1995
Individuals & companies paid for about half of the health care costs incurred by Americans with the government paying the other half (elderly, disabled, children, veterans, indigent)
Patient Protection and Affordable Care Act of 2010
Amended to be called the Affordable Care Act (Obamacare)
The law provides many rights and protections that make health coverage more fair and easy to understand.
Offers subsidies (premium tax credits) to make insurance more affordable
Allowed people with preexisting health problem to get affordable health insurance.
The Bill
Hospitals and other providers charge 2, 3, 4 or more times what an insurance company will pay for treatment.
Billing practices
Insurance companies have contracted rates with providers = discounted rates for patient volume and prompt payment
Uninsured are billed full rate
Some doctors bill 3 times what they expect to get; charge more in hope of getting more as they know they will not receive what they bill for.
Patients who pay their inflated bills make up for those who cannot/do not pay.
Medical documentation
all notes and documents that health care professionals add to the medical record.
Medical records
collection of all documents that are filed together and form a chronological health history of a particular patient. Medical records are legal documents used in court.
Charting-
recording observations and informtion about patients.
Purpose of Medical Documentaton
Improve continuity of care
Provides health care providers with information they need to make decisions
Helps enforce staff accountblity- accountable for what you write in medical record.
More accurate vital statistics (death, disease outbreaks)
Provides legal protection- records shows proof of what has taken place with the patient.
Ensures compliance with regulatory agencies
Improves cost control
Decreases denials from insurance companies
Provides data for investigation of errors and incidents
Medical History-
includes personal, family, and social history. It should include the patient's past medical problems, surgeries, allergies, and current problems
Progress Notes-
chronological statements about a patient's care. Each time a doctor see's a patient, they will make notes to update findings and plan the care of the patient.
How to fix an error:
Draw a single line through the error. Must be able to read the original entry.
Write in the correct information where there is space (above, below, or following the orignal entry)
Note the error as required by your facility
Electronic Medical Records (EMRs)
are digital versions of paper records.
Benefits of EMRs
Medical records are entered into a computerized system.This helps with reduction of errors, easier access, improved communication and efficiency.
Challenges of EMRs
Cost of purchasing a system is very expensive. Cybersecurity is another issue. Health records can by compromised during a cyberattack. HIPAA (Health Insurance Portability and Accountability Act) requires medical records to be kept private.
CYBERTHREATS
Biggest problem with electronic health records??
Computers perform three major operations:
Store huge amounts of data
Calculate, manipulate, organize, and retrieve data quickly and accurately
Enable high-speed communication
Diagnostic tools are available due to the computers ability to manipulate data and perform high-speed calculations. Diagnostic Imaging
Computer tomography (CT)
Magnetic resonance imaging (MRI)
Positron emission tomography (PET)
Ultrasonography
Electrical impedance tomography (EIT)
CT Scan
uses x-ray and computer to create detailed images of bones and soft tissue
How the MRI works
Uses large magnet, radio waves, and computer to created detailed images of organs and structures
PET Scan
Uses radioactive trace material to find diseased tissue to detect cancer.
Ultrasongraphy
Uses sound waves to create images of of organs in your body
Electrical Impedance Tomography
Measures electrical currents to detect differences in lung tissues
Steps of Electronic impendence Tomograhy
A= electrodes placed
B= EIT image where white indicates highest volume changes and dark blue is non ventilated regions of the lung
C=CT scan of someone with lung disease
Other uses for technology:
New treatments including lasers (focused light rays)
Pharmaceuticals- dispensing medications
Rehabilitation- people with disabilities can live more independently and computer-aided design to improve prosthetic devices
Research- keeping up to date with medical advances
Education- offers ways to learn for students, health care professionals, and patients
Electronic Mail (email)- is now a standard professional communication tool
Telemedicine- treat patients remotely
Conditions favorable for growth
Warmth
Darkness
Food source
Moisture
Aerobic
Require oxygen
Anarerobic
Do not require oxygen
Chain of infection
Pathogen causes infection; causative agent
human body, animals, environmental; where it lives normally; resovoir
Pathogen leaves resovoir; portal of exit
how pathogen gets from resovoir to new host; mode of transmission
how pathogen gets into new host; portal of entry
someone who gets sick from pathogens; suseptible host
Carrier
someone who gets infected without sympotms