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

1. Human Survival Across the Globe

Survival rates vary significantly depending on the country of residence, specifically between developed and underdeveloped nations.

• Developed Countries: Citizens often lead full lives with access to advanced medical care, vaccines, and sufficient resources to treat serious illnesses.
• Underdeveloped Countries: Many lack access to essential food, clean water, and basic medical treatments, making even minor illnesses difficult to manage.

2. Defining Health

True health is defined by living without disease, supported by a balanced diet, regular exercise, and adequate hydration. Unfortunately, sedentary lifestyles and poor nutrition have led to rising rates of obesity in both children and adults.

3. Eradicating Illness

If... Continue reading "Global Health Disparities and Disease Prevention Strategies" »

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" »

Mining Safety and Health Compliance Obligations

1) The principal company, for the purposes of planning and complying with obligations regarding safety and health at work in the mine, must maintain a running record containing at least:

• Schedule of activities or jobs to execute
• RUT and business name
• Work history records

Defining the Safety Management System

2) Define the safety management system:

All components of risk prevention to ensure the protection of the health and safety of all workers.

Joint Committee Functions

3) According to Decree 76, what is the function of the joint committee?

Surveillance and coordination of security operations and health at work in the respective task, work, or service.

Full Compliance Requirements

1) The risk prevention... Continue reading "Occupational Health and Safety Compliance Standards for Mining" »

Diagnostic Methods in Medicine

Clinical diagnosis is the determination of the disease or condition that causes a symptom. Various methods are used to diagnose, including:

• Physical examination: Palpation and observation of body parts, examinations of the heart and respiratory system, etc.
• Analysis: Usually involving blood or urine samples.
• Imaging methods: Radiography, ultrasound, and other diagnostic imaging.
• Biopsies: The extraction and analysis of body tissue or organs.

Understanding Leukemia and Its Effects

Leukemia causes fatigue by reducing the number of red blood cells, leading to a loss of the ability to transport oxygen. It also causes vulnerability to infections, the loss of function in most leukocytes, and alterations in blood clotting due... Continue reading "Clinical Diagnosis and the Pathophysiology of Cancer" »

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" »

Eye Tumors

For tumors >15 mm or thickness >10 mm, enucleation is indicated. Otherwise, episcleral plaque brachytherapy is used.

• Isotopes: I-125 (<6 mm).
• Required Data: Tumor drawing, eye diameter, basal diameter, and maximum/minimum tumor thickness. Data is transferred to specific planning software (seeds, activity, position, duration).
• Treatment: Surgical application of episcleral plaques under anesthesia, covering the tumor base with a 2-3 mm margin.
• I-125: Dose 85 Gy (melanoma) and 40 Gy (retinoblastoma); dose rate 0.6-1.05 Gy/h.
• RU-106: Dose 100-130 Gy; dose rate 7.2-12 Gy/h. Inpatient care required.

Breast Tumors

Indications include tumor bed boost, accelerated partial breast irradiation, and HDR for local recurrence.

• Boost Requirements:

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" »

Northwest Catalan Dialect

The Northwest dialect is spoken in Andorra, the western regions of Catalonia, and the Franja. Key features include:

• Articles: Use of masculine forms lo / los.
• Weak Pronouns: Full forms are presented before the verb (e.g., me canso).
• Inchoative Verbs: Third-conjugation verbs use tonic forms like servix, servixen.
• Subjunctive: The present subjunctive retains old endings in the first conjugation (que jo cante or canti) and other conjugations (que jo teme, que ell mulla).
• Vocabulary: Shares many words with Valencian and Balearic dialects.

Characteristics of the Western Block

• Unstressed Vowels: Clear distinction between unstressed vowels.
• Phonetics: A higher presence of the sound [e].
• Diphthongs: Maintenance of the diphthong sound