Hypoxemia vs Hypoxia Flashcards

Definitions

• Hypoxemia: Characterized by low oxygen levels in the bloodstream, potentially affecting overall oxygen delivery to tissues.
• Hypoxia: Refers to insufficient oxygen availability in tissues throughout the body, impacting cellular function and metabolism.

Early Signs of Hypoxemia

• Symptoms include tachypnea (increased breathing rate) and tachycardia (increased heart rate).
• May manifest as restlessness and changes in skin color, such as pale skin and mucous membranes.
• Often accompanied by elevated blood pressure and indicators of respiratory distress.

Late Signs of Hypoxemia

• Severe symptoms include confusion and stupor, reflecting impaired cognitive function due to inadequate oxygenation.
• Physical indicators include cyanotic skin and mucous membranes, signaling significant oxygen deprivation.
• Other late signs comprise bradypnea (decreased respiratory rate), bradycardia (decreased heart rate), hypotension, and potential cardiac dysrhythmias.

Early Signs of Hypoxia

• Early symptoms may involve heightened restlessness, tachycardia, and tachypnea.
• Patients might experience dyspnea (difficulty breathing) along with increased agitation and anxiety.
• Additional signs can include diaphoresis (excessive sweating), retractions during breathing, and headache.

Late Signs of Hypoxia

• Progression leads to increased restlessness and stupor, indicating severe oxygen deprivation.
• Patients may exhibit marked dyspnea and significantly decreased respirations, which require urgent attention.
• Early indicators evolve into bradycardia and cyanosis, necessitating immediate medical intervention.