Physical Examination Findings in Common Medical Conditions
NUMERO TREDICI: First Impression and Fever
First Impression
Observing a patient’s entrance and demeanor provides valuable information. We can assess pain, mobility, vision, and overall well-being by noting their gait, posture, facial expressions, and need for assistance.
Consciousness
Evaluate the patient’s level of consciousness, ranging from alertness to coma.
Position and Movements
Observe the patient’s posture (active, passive, or obligatory) and any abnormal movements like tremors or convulsions.
Read MoreIndustrial Hygiene: Workplace Risk Management
Industrial Hygiene
Study of Workplace Risks
Industrial hygiene focuses on identifying, evaluating, and controlling environmental factors or stresses in the workplace that can cause illness, impair health, or affect well-being. It involves recognizing risks associated with physical, chemical, and biological agents.
Objectives and Principles
- Identify risks from physical, chemical, or biological agents.
- Quantify and assess workplace risks.
- Implement control measures to mitigate risks.
Chemical Agents
Chemical
Read MoreEvolution & Origin of Life: Theories, Experiments & Evidence
Evolution & Origin of Life
Early Experiments & Theories
Redi’s Experiment
Francesco Redi investigated the spontaneous generation of maggots by placing meat in three jars: one open, one covered with fabric, and one sealed. Maggots only appeared in the open and fabric-covered jars, suggesting they arose from flies, not spontaneously.
Pasteur’s Experiment
Louis Pasteur further disproved spontaneous generation by using swan-neck flasks containing sterilized broth. The broth only decomposed when exposed
Read MoreBlood Circulation and Internal Environment in Human Beings
1. Internal Environment
Internal environment is those that provides all cells with all the nutrients they need. The internal environment in human beings is formed by:
- Interstitial plasma. It is a liquid substance that fills the existing spaces between cells. Interstitial plasma needs to be renewed continuously, because new nutrients need to be provided and waste products can’t be allowed to accumulate and must be released. Blood renews interstitial plasma given that it circulates around the whole
Understanding Environmental Factors and Adaptations
Environmental Factors
The characteristics of the environment that affect living things are called environmental factors. They can be biotic or abiotic.
Biotic/Abiotic Factors
Abiotic factors are the physical and chemical conditions that affect living things: water, temperature, light, soil, pH, humidity, and nutrients found in soil or water.
Biotic factors are the organisms that share the same natural environment.
Intraspecific Relationships
Those between individuals of the same species.
Interspecific
Read MoreChordates: Characteristics, Classification, and Evolution
Chordates: Characteristics and Classification
Basic Characteristics of Chordates
All chordates share four basic characteristics:
- Dorsal Notochord: A long supporting rod that runs through the body just below the nerve cord. Most chordates have a notochord only when they are embryos.
- Dorsal Hollow Nerve Chord: The cord runs along the back of the body. Nerves branch from this cord at regular intervals and connect to internal organs, muscles, and sense organs.
- Pharyngeal Pouches: Paired structures in the