Fundamentals: Chapter 29; Resp Flashcards
What is the mechanism the body uses to exchange gases between the atmosphere and the blood and the blood and the cells?
Respiration
What is ventilation during respiration?
The movement of gases in and out of the lungs
What is diffusion during respiration?
the movement of oxygen and carbon dioxide between the alveoli and the read blood cells
What is perfusion during respiration?
The distribution of red blood cells to and from the pulmonary capillaries
How does a nurse assess ventilation?
determine respiratory rage, depth and rhythm
How does a nurse assess diffusion and perfusion?
determine oxygen saturation
What is the most important factor in the control of ventilation?
CO2 in the arterial blood
What is the term for low levels of arterial O2?
hypoxemia
Why is the administration of high level O2 fatal for patients with chronic lung disease?
Hypoxemia helps to control ventilation in patients with chronic lung disease because low O2 provides the stimulus that allows the patient to breathe
What is tidal volume?
the amount of air normally inhaled
What is the term for the normal rate and depth of ventilation?
eupnea
What does a drop in respiration in a patient with head trauma often indicate?
injury to the brainstem
How is respiratory rate affected by age?
declines throughout life
What are factors that influence the character of respirations (rate/depth/rhythm)?
ExerciseAcute painAnxietySmokingBody PositionMedicationsNeurological injuryHemoglobin function
What is the acceptable respiratory rate for a newborn?
35-40