Notes, summaries, assignments, exams, and problems for Medicine & Health

Cardiovascular Disease: Causes, Treatments, and History

Cardiovascular diseases (CVDs) are largely caused by lifestyle factors, including:

• Poor diet
• Lack of exercise
• Excessive stress
• Tobacco use (snuff)

Understanding Cardiovascular Disorders

CVDs are a group of disorders affecting the heart and blood vessels. These include alterations in:

• The heart muscle itself
• Valves
• Vessels that carry blood to the heart and brain
• Hypertension (high blood pressure)

Heart attacks and strokes are typically caused by a blockage of blood circulation to the heart or brain. This blockage often results from the narrowing of arteries and veins due to the accumulation of fat (known as atheroma or cholesterol plaques) in their walls, hardening them.

The History and Role of Aspirin

The... Continue reading "CVD, Depression, and Eating Disorders: Causes & Care" »

Bowel Elimination Physiology in the Elderly

In the elderly, stools are less frequent and may be harder. Constipation is a common complaint among healthy elderly patients, often without a clear single etiology. Aging produces:

• Slowing of gastrointestinal motility.
• Mucosal and intestinal muscle atrophy.
• Reduced nerve function in the intestine, rectum, and anus.

Subjective Constipation

In the elderly, this is usually related to incorrect assessments or ideas acquired due to cognitive decline.

Manifestations

Unrealistic expectations regarding the quantity and timing of bowel movements, leading to the abuse of laxatives.

Criteria Scores

The elderly person must:

• Recognize their bowel pattern as normal.
• Recognize the negative effects of laxatives.
• Specify activities

Lung Cancer Classification and Characteristics

Small Cell Lung Cancer (SCLC)

• Usually originates in a central location.
• High risk of lymph node metastases.
• Most patients present with metastases at diagnosis.

Non-Small Cell Lung Carcinoma (NSCLC)

• Adenocarcinoma

  • Usually peripheral.
  • More frequent in nonsmokers and women.
  • High risk of lymph node invasion and distant metastases.

• Squamous Cell Carcinoma

  • The most common of all lung cancers.
  • Normally affects the bronchi.
  • High risk of nodal involvement.

• Large Cell Carcinoma

Other Lung Tumors

• Carcinoid Tumors

Oncological Treatment for Lung Cancer

Treatment for Stages I and II Lung Cancer

Surgical Treatment (Surgery)

• Lobectomy: Excision of the lobe containing the tumor.
• Pneumonectomy: Full excision of the lung. Performed if

Foundations of Health and Well-being

Defining Health

Health encompasses social, cultural, economic, and biological factors, leading to continuous change.

The World Health Organization (WHO) states that health is a complete state of physical, mental, and social well-being, not merely the absence of disease, plus the ability to function.

Levels of Health and Well-being

Achieving a perfect state of health involves optimal physical and mental well-being, leading to a perfect state of welfare.

Primary Health Care (PHC)

Primary Health Care (PHC) is defined as essential assistance that should be generally available to all individuals and families in the community, through appropriate means accessible to them.

PHC Actions and Cost Reduction

1. Promotion
2. Protection

A

• In a good deal: Many, above all, especially abroad.
• Accountant: The stranger.
• Address book: Contact.
• Afford: Allow.
• All in all: In general.
• Alow/Allow: Permit.
• Annoyed: Angry.
• Apply for: Seek.
• Approach: Method.
• Ardent: Fervent.
• As long as: Provided that.
• Assortment: Collection.
• Avoid: Evade.

B

• Be about to: Ready to.
• Beat about the bush: Avoid saying something directly.
• Beg: Plead.
• Boarding school: Residential school.
• Boot: Car trunk.
• Bottom line: The main point.
• Break a habit: Stop a habit.
• Break someone's heart: Cause emotional pain.
• Break the news: Inform.
• Bursts into tears: Starts crying.
• Business executive: Executive.

C

• Cab: Taxi.
• Can: Tin.
• Candy: Sweets.
• Chance: Occasion.
• Charm: Attractive quality.
• Check: Examine.
• Cheer: Applaud.
• Chemist's: Pharmacy.
• Choice: Option.
• Clap:

Fetal Development: The Journey to Birth

First Trimester Milestones (Weeks 8–11)

By 8 weeks, the embryo transitions into a fetus.

Week 9: Nervous System and Movement

• The nervous system generates neurons.
• The fetus begins to tremble, strengthening muscles through involuntary spasms.
• The brain does not yet control the heartbeat.

Week 11: Reflexes and Growth Spurt

• The kicking reflex begins (the fetus starts experimenting with its feet).
• The period from Week 6 to 11 shows the most notable growth.

Second Trimester Development (Up to Week 18)

The fetus develops strong muscles and bones, connecting all organs of the nervous system. It gains total control of the brain and becomes sensitive to touch. The fetus is aware of its space and performs countless movements.... Continue reading "Fetal Development Timeline: From Embryo to Newborn Senses" »

Chagas, Malaria & Cryptosporidiosis: Causes and Care

Chagas Disease: Etiologic Agent and Vector

Chagas disease: etiologic agent Trypanosoma cruzi. The vector is the blood-sucking triatomine insect (triatomine). In the insect intestine the parasite develops juvenile stages such as epimastigotes and trypomastigotes. It is transmitted through vector feces.

Human Infection and Life Stages

In humans, trypomastigotes circulate in the bloodstream, invade cells, and can be found as intracellular amastigotes that affect cells and tissues.

Clinical Manifestations

Clinical manifestations: general deterioration, dyspnea, headache, and lower extremity edema. There is an indeterminate or asymptomatic period that can last 20 to 30 years or more. Diagnosis is... Continue reading "Chagas, Malaria & Cryptosporidiosis: Causes and Care" »

Understanding Pressure Ulcers (UPP)

A Pressure Ulcer (UPP) is a lesion primarily caused by uncontrolled and prolonged pressure between a bone and a hard surface. This compression affects the underlying arteries, preventing proper irrigation and resulting in tissue ischemia and necrosis.

Pathophysiology of Ulcer Development

1. Pressure on planar surfaces
2. Decreased blood supply to the area
3. Oxygenation and nutritional deficits in tissues
4. Ischemia
5. Ulceration or injury
6. Necrosis

Risk Factors for Pressure Ulcers

• Pressure and Friction
• Humidity
• Immobility
• Shear forces (pinching)
• Decreased peripheral circulation
• Infections
• Cachexia and malnutrition
• Obesity
• Altered levels of consciousness
• Sphincter control issues
• Skin condition and malnutrition

High-Risk Body Areas

• Sacrum: 24%

Key Facts on Nutrition and Dietary Guidelines

42. In the case of basic amino acids, such as alanine, the body *lacks* synthesis mechanisms to address the needs. False

43. In myocardial infarction, a soft diet is recommended because it is easily digestible, *not* involving a remarkable effort. True

44. Involuntary feeding is conscious and includes all activities aimed at obtaining food. False

45. Type II diabetes usually occurs in individuals older than 35-40 years and is associated with resistance to the action of insulin. True

46. The raw fiber that is ingested in uncooked vegetables, would be the same as the total ingested fiber if those same vegetables were cooked. False

47. Fructose is a *monosaccharide*, and its main nutritional interest is... Continue reading "Nutrition and Dietary Guidelines: Key Facts" »

Intervention in Language Problems

This relates to patients with difficulties in language acquisition, verbal expression, pronunciation, reading, and writing. The speech therapist's role is to teach effective communication strategies and provide systems that enable individuals to express themselves through spoken, written, or gestural means.

Speech Therapy

Speech therapy is a discipline encompassing the study, prevention, assessment, diagnosis, and treatment of language pathologies.

Speech Articulation Disorders

• Dyslalia: Difficulty articulating phonemes (vowels and consonants) correctly.
  • Evolutionary: Language immaturity.
  • Audiogenic: Hearing impairment.
  • Functional: Difficulty controlling speech organs.
  • Organic: Organ impairment.
• Diglossia: Changes in