PHTY300 Lecture 1: PHTY 300 Wk 1 Lectures
Document Summary
Arterial blood gas components: the test provides information on. Electrolyte blood glucose, lactate, renal function : when initially assessing the results, what is wrong and which system is responsible, how sick is the patient. Normal blood gas values: ph, paco2, pao2, hco3-, be: Acid base balance: homeostasis, ph, h2o + co2 h2co3 h+ + hco3, system involved, step 1 acid base. Acidosis: respiratory - paco2 > 45, decreased gas movement overall. Low rr without increased tidal volume: signs and symtpoms of respiratory acidosis. Unsteady / falls: metabolic - hco3 < 22, acid gain or bicarbonate loss. Severe diarrhea: signs and symptoms of metabolic acidosis. Alkalosis: respiratory - paco2 < 35, hyperventilation (blowing off too much co2) Sepsis: signs and symptoms of respiratory alkalosis. Arrhythmias: metabolic - hco3 > 28, acid loss or bicarbonate gain. Renal metabolic sydromes, drugs, not renal failure: signs and symptoms. Decreased minute ventilation (decreased rr and tidal volume)
