Explain blood gas levels for acute respiratory failure
PO2 levels less than 50 with or without PCO2 levels greater than 50. PO2 is the amount of free oxygen in their arterial blood. That is only 3% of your total available oxygen. The CO2 number only measures about 7% of total available CO2. Free Floating.
Give five conditions likely to lead to respiratory failure
Explain the relationship of decreased ventilation of respiratory acidosis.
Pt only breathing 5x/minute CO2 and K levels go up. Hydrogen ions brought into RBC to get out of blood. H is positively charged, we want neutral. K comes out of RBCs to balance. Carbonic acid.
Explain renal compensation to respiratory acidosis.
Lungs have the most control over CO2. Kidneys pee off hydrogen and retain bicarbs.
Squamous Cell Carcinoma
Most common. Centrally located in bronchial tree. Slow growing malignancy. If diagnosed early it is easily cured. Symptoms: persistant, non-productive cough for a year.
Glandular epithelial tissue. Bad cancer to have. Very quick to invade lymph nodes, bones, and surrounding vessels. Not unusual for it to be diagnosed at metastisising site first.