Article: Levels Of Prevention

Primary Prevention

Providing specific protection against disease to prevent its occurrence is the most desirable form of prevention. Primary preventive efforts spare the client the cost, discomfort and the threat to the quality of life that illness poses or at least delay the onset of illness. Preventive measures consist of counseling, education and adoption of specific health practices or changes in lifestyle.

Examples:

1. Mandatory immunization of children belonging to the age range of 0 – 50 months old to control acute infection diseases.
2. Minimizing contamination of the work or general environment by asbestos dust, silicone dust, smoke, chemical pollutants and excessive noise.
   

Secondary Prevention
It consist of organized, direct screening efforts or education of the public to promote early case finding of an individual with disease so that prompt intervention can be instituted to halt pathologic processes and limit disability. Early diagnosis of a health problem can decrease the catastrophic effects that might otherwise result for the individual and the family from advanced illness and its many complications.

Examples:

1. Public education to promote breast self-examination, use of home kits for detection of occult blood in stool specimens and familiarity with the seven cancer danger signals.
2. Screening programs for hypertension, diabetes. Uterine cancer (pap smear), breast cancer (examination and mammography), glaucoma and sexually transmitted disease.

Tertiary Prevention
It begins early in the period of recovery from illness and consists of such activities as consistent and appropriate administration of medications to optimize therapeutic effects, moving and positioning to prevent complications of immobility and passive and active exercise to prevent disability.
Continuing health supervision during rehabilitation to restore an individual to an optimal level of functioning. Minimizing residual disability and helping the client learn to live productively with limitations are the goals of tertiary prevention. (Pender, 1987)

Health Warnings

Did you ever drink from a plastic bottle and see a triangle symbol on the bottom with a number inside?





Do you know what the number stands for?
Did you guess that it's just for recycling?

Then you are WRONG !!!!!! THE NUMBER TELLS YOU THE CHEMICAL MAKE UP OF THE PLASTIC.....

1) Polyethylene terephalate (PET)
2) High density polyethylene (HDPE)
3) Unplasticised polyvinyl chloride (UPVC) or Plasticised polyvinyl chloride (PPVC)
4) Low density polyethylene LDPE
5) Polypropylene (PP)
6) Polystyrene (PS) or Expandable polystyrene (EPS)
7) Other, including nylon and acrylic

What you aren't told is that many of the plastics used are toxic and the chemicals used to create a plastic can leach out of the plastic and into the food / drink. Think about it, how many times have you or a friend said "I don't like this, it taste like the plastic bottle ..... "

THAT'S BECAUSE YOU ARE TASTING THE PLASTIC. The WORST ONES are Nos: 3, 6, and 7 !!!

DO NOT USE THESE NUMBERS if stated at the bottom of the bottle) !!!

Check out this chart that breaks down the plastic, its uses and chemical makeup (I find #7 a little scary) http://www.epd. gov.hk/epd/ english/environm entinhk/waste/ guide_ref/ guide_plascod3. html


AVOID re-using plastic bottles RIGHT AWAY !!!

Article: Phases of COPAR Process

nitI. Pre-entry Phase

• Is the initial phase of the organizing process where the community/organizer looks for communities to serve/help.
• It is considered the simplest phase in terms of actual outputs, activities and strategies and time spent for it.

Activities include:

1. Designing a plan for community development including all its activities and strategies for care development.
2. Designing criteria for the selection of site
3. Actually selecting the site for community care

II. Entry Phase

• Sometimes called the social preparation phase as to the activities done here includes the sensitization of the people on the critical events in their life, innovating them to share their dreams and ideas on how to manage their concerns and eventually mobilizing them to take collective action on these.
• This phase signals the actual entry of the community worker/organizer into the community.
• She must be guided by the following guidelines however.
  1. Recognizes the role of local authorities by paying them visits to inform them of their presence and activities.
  2. The appearance, speech, behavior and lifestyle should be in keeping with those of the community residents without disregard of their being role models.
  3. Avoid raising the consciousness of the community residents; adopt a low-key profile.

III. Organization Building Phase

• Entails the formation of more formal structures and the inclusion of more formal procedures of planning, implementation, and evaluating community-wide activities. It is at this phase where the organized leaders or groups are being given trainings (formal, informal, OJT) to develop their skills and in managing their own concerns/programs.

IV. Sustenance and Strengthening Phase

• Occurs when the community organization has already been established and the community members are already actively participating in community-wide undertakings. At this point, the different communities setup in the organization building phase are already expected to be functioning by way of planning, implementing and evaluating their own programs with the overall guidance from the community-wide organization.
• Strategies used may include:
  a. Education and training
  b. Networking and linkaging
  c. Conduct of mobilization on health and development concerns
  d. Implementing of livelihood projects
  e. Developing secondary leaders

Case Study: Pathophysiology of Bronchitis (COPD)

Chronic Obstructive Pulmonary Disease (COPD) is a disease characterized by airflow limitation that is not fully reversible. Airflow limitation is usually progressive and associated with an inflammatory response in the lungs stimulated by irritants. COPD includes chronic bronchitis and pulmonary emphysema. Although sometimes included in COPD, asthma is a reversible disorder and is therefore considered elsewhere.

Chronic bronchitis is chronic inflammation of the lower airways characterized by excessive secretion of mucus, hypertrophy of mucous glands, and recurring infection, progressing to narrowing and obstruction of airflow. Emphysema is the enlargement of the air spaces distal to the terminal bronchioles, with breakdown of alveolar walls and loss of elastic recoil of the lungs. The two conditions may overlap, resulting in subsequent derangement of airways dynamics (e.g., obstruction to airflow). In pulmonary emphysema, lung function progressively deteriorates for many years before the illness becomes apparent.

The most common cause of COPD is cigarette smoking. Air pollution, occupational exposures, allergens, and infections may also act as irritants. Alpha1-antitrypsin deficient is an infrequent cause. Complications include respiratory failure, pneumonia or other overwhelming respiratory infection, right heart failure (cor pulmonale), arrhythmias, and depression.

Case Study: Malaria

Definition:
Malaria is an acute and chronic parasitic disease transmitted by the bite of infected mosquitoes and it is confined mainly to tropical and subtropical areas.
This disease causes more disability and heavier economic burden than any parasitic disease.



Countries where malaria is endemic as of 2003 Malaria generally occurs in areas where environmental conditions allow parasite multiplication in the vector. Thus, malaria is usually restricted to tropical and subtropical areas (see map) and altitudes below 1,500 m. However, this distribution might be affected by climatic changes, especially global warming, and population movements. Both Plasmodium falciparum and P. malariae are encountered in all shaded areas of the map (with P. falciparum by far the most prevalent). Plasmodium vivax and P. ovale are traditionally thought to occupy complementary niches, with P. ovale predominating in Sub-Saharan Africa and P. vivax in the other areas; however these two species are not always distinguishable on the basis of morphologic characteristics alone; the use of molecular tools will help clarify their exact distribution.


Etiologic Agent: Protozoa of genus plasmodia


The disease is caused by four species of protozoa:

1. Plasmodium falciparum (malignant tertian)

• This is considered as the most serious malarial infection because of the development of high parasitic densities in blood (RBC) with tendency to agglutinate and form into microemboli.
• This is most common in the Philippines.

2. Plasmodium vivax (Benign tertian)

• This is nonlife threatening except for the very young and the old.
• It is manifested by chills every 48 hours on the 3rd day onward especially if untreated.

3. Plasmodium malariae (Quartan)

• It is less frequently seen.
• This specie is nonlife threatening.
• Fever and chills usually occur every 72 hours usually on the 4th day after onset.

4. Plasmodium ovale is the rare type of protozoan species.

• This is rarely seen in the Philippines.

The primary vector of malaria is the female Anopheles mosquito which has the following characteristics:

1. It breeds in clear, flowing, and shaded streams usually in the mountains.
2. It is bigger in size than the ordinary mosquito.
3. It is brown in color.
4. It is a night-biting mosquito.
5. It usually does not bite a person in motion.
6. It assumes a 36º position when it alights on walls, trees, curtains, and the like.

Incubation period:
12 days for P. Falciparum
14 days for P. vivax and ovale
30 days for P. malariae



Period of Communicability:
Untreated or insufficiently treated patient may be the source of mosquito infection for more than three years in P. malariae, one to two years in P. vivax, and not more than one year on P. falciparum.


Mode of Transmission:

1. The disease is transmitted mechanically through the bite of an infected female anopheles mosquito
2. It can be transmitted parenterally through blood transfusion.
3. On rare occasions, it is transmitted from shared contaminated needles.
4. However, transplacental transmission of congenital malaria is a rare case.

Clinical Manifestations:

• Paroxysms with shaking chills
• Rapidly rising fever with severe headache
• Profuse sweating
• Myalgia, with feeling of well-being in between
• Splenomegally, hepatomegally
• Orthostatic hypotension
• Paroxysms may last for 12 hours, then, maybe repeated daily or after a day or two.
  

In children:

• Fever maybe continuous
• Convulsions and gastrointestinal symptoms are prominent
• Splenomegally

In cerebral malaria

• Changes in sensorium, severe headache, and vomiting
• Jacksonian or grand mal seizure may occur

Diagnostic Procedure:

1. Malarial smear – In this procedure, a film of blood is placed on a slide, stained, and examined microscopically.
2. Rapid diagnostic test (RDT) – This is a blood test for malaria that can be conducted outside the laboratory and in the field. It gives a result within 10 to 15 minutes. This is done to detect malarial parasite antigen in the blood.

Pathogenesis:

1. The parasite enters the mosquito’s stomach through the infected human blood obtained by biting or during blood meal.
2. The parasite undergoes sexual conjugation.
3. After 10 to 14 days, a number of young parasites are released which work their way into the salivary gland of the mosquito.
4. The organisms are carried in the saliva into the victim when the mosquito bites again.
5. The female alone plays the role of a vector and definitive host in conveying the disease from man to man (sexual propagation).
6. In humans, the organisms invade the RBC where they grow and undergo sexual schizogony.
7. Erythrocytic merozoites are produced leading to the rupture of RBC upon the release of the tiny organisms.
8. Young merozoites invade a new batch of RBC, to start another schizonic cycle.

Nursing Management:

1. The patient must be closely monitored.
   a. Intake and output should be closely monitored to prevent pulmonary edema.
   b. Daily monitoring of patient’s serum bilirubin, BUN creatinine, and parasitic count
2. If the patient exhibits respiratory and renal symptoms, determine the arterial blood gas and plasma electrolyte
3. During the febrile stage, tepid sponges, alcohol rubs, and ice cap on the head will help bring the temperature down.
4. Application of external heat and offering hot drinks during chilling stage is helpful.
5. Provide comfort and psychological support.
6. Encourage the patient to take plenty of fluids.
7. As the temperature falls and sweating begins, warm sponge bath maybe given.
8. The bed and clothing should be kept dry.
9. Watch for neurologic toxicity (from quinine infusion) like muscular twitching, delirium, confusion, convulsion, and coma.
10. Evaluate the degree of anemia.
11. Watch for any signs especially abnormal bleeding.
12. Consider severe malaria as medical emergency that requires close monitoring of vital signs.

Treatment and Medications:
Anti-Malarial Drugs

• Artemether-lumefantrine (Therapy only, commercial names Coartem and Riamet)
• Artesunate-amodiaquine (Therapy only)
• Artesunate-mefloquine (Therapy only)
• Artesunate-Sulfadoxine/pyrimethamine (Therapy only)
• Atovaquone-proguanil, trade name Malarone (Therapy and prophylaxis)
• Quinine (Therapy only)
• Chloroquine (Therapy and prophylaxis; usefulness now reduced due to resistance)
• Cotrifazid (Therapy and prophylaxis)
• Doxycycline (Therapy and prophylaxis)
• Mefloquine, trade name Lariam (Therapy and prophylaxis)
• Primaquine (Therapy in P. vivax and P. ovale only; not for prophylaxis)
• Proguanil (Prophylaxis only)
• Sulfadoxine-pyrimethamine (Therapy; prophylaxis for semi-immune pregnant women in endemic countries as “Intermittent Preventive Treatment” - IPT)
• Hydroxychloroquine, trade name Plaquenil (Therapy and prophylaxis)

Prevention and Control:

1. Malaria cases should be reported.
2. A thorough screening of all infected persons from mosquitoes is important.
3. Mosquito breeding places must be destroyed.
4. Homes should be sprayed with effective insecticides which have residual actions on the walls.
5. Mosquito nets should be used especially when in infected areas.
6. Insect repellents must be applied to the exposed portion of the body.
7. People living in malaria-infested areas should not donate blood for at least three years.
8. Blood donors should be properly screened.

Source:
Handbook of Common Communicable and Infectious Diseases 2006 Ed
http://en.wikipedia.org/
http://www.doh.gov.ph/
http://www.who.int/