Assessment of Respiratory Function- Chapter 21
Anatomic and Physiologic Overview o The respiratory system is composed of the upper and lower respiratory tracts.
o Together, the two tracts are responsible for ventilati
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Assessment of Respiratory Function- Chapter 21
Anatomic and Physiologic Overview o The respiratory system is composed of the upper and lower respiratory tracts.
o Together, the two tracts are responsible for ventilation
o The upper respiratory tract (upper airway) warms and filters inspired air so that the lower respiratory tracts (lungs) can accomplish gas exchange. o Gas exchange involves delivering oxygen to the tissues through the bloodstream and expelling waste gases, such as carbon dioxide, during expiration.
o The respiratory works together with the cardiovascular system, the respiratory system is responsible for ventilation and diffusion and the cardiovascular system is responsible for perfusion.
Metabolic Acidosis (HYPERKALEMIA) o Kidney/Renal Failure o Dialysis o Diabetes o Diarrhea-loss bicarb o Peak Twaves
Metabolic Alkalosis (HYPOKALEMIA) o Vomiting- loss of HCL
o NG tube (suction of acid from stomach)
o U waves seen
o Hyperventilate –lose CO2 (acid)=Alkalosis- Increase HCO3 o Hypo- keep CO2 (acid)=Acidosis- Decrease HCO3
Compensated means the body is trying to compensate for whatever is going wrong, PH in normal range but borderline.
Respiratory Acidosis o COPD
o Acute pulmonary edema
o ARDS
o Hypoventilating o CNS depression
Respiratory Alkalosis o Hyperventilating o Acid deficiency
Respiratory Acidosis Tx o Improve ventilation o Mechanical ventilation o Reversal of sedative o Antibiotics o Diuretics
Respiratory Alkalosis Tx o Sedative o Correct hypoxia o Antipyretics o Treat hyperthyroidism o Breath into paper bag
Metabolic Acidosis Tx o Give bicarb
o IV fluids or insulin for DKA o Dialysis o Increase CO o Treat <3
Metabolic Alkalosis o Give K
o Diamox, increase HCO3 secreation o Monitor neuro status
Anatomy of the Respiratory System
Upper Respiratory tract o Consist of the:
• Nose
• Sinuses
• Nasal passages
• Pharynx
• Tonsils
• Adenoids
• Larynx
• Trachea
Lower respiratory tract o Consists of the:
• Lungs, which contain the bronchial and alveolar structures needed for gas exchange.
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