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ER vet support
From Plunkett's Emergency Procedures for the Small Animal Veterinarian
| Question | Answer |
|---|---|
| Evaluating blood gas first 3 questions: | Is pH normal? What's partial pressure of CO2? What's the bicarb? |
| Partial pressure of CO2 is the ______ component of acid-base evaluation. | respiratory |
| Bicarb concentration is the ______ component of acid-base evaluation. | nonrespiratory |
| Respiratory acidosis/primary hypercapnia indicates... | hypoventilation, hypoxemia (not breathing enough) |
| Moderate elevation of PaCO2 can activate ________ part of nervous system | sympathetic |
| As PaCO2 goes up, so does .... in the skull | intracranial pressure and cerebral blood flow |
| Really high PaCO2 levels are ...mmHg | 60-70mmHg |
| Really high PaCO2 can cause... | disorientation, narcosis, and coma |
| Medications that depress respiratory center: | inhalant anesthetics, opioids, barbiturates |
| Ndeurologic lesions that depress respiration: | Cervical spinal cord lesion, brainstem lesion |
| Nasty chemicals that depress respiration: | organophosphates, aminoglycosides |
| Interesting diseases that can depress respiration at neuromuscular junction: | Myasthenia gravis, botulism, tetanus, tick paralysis, severe hypokalemia |
| Things that obstruct large airways (there are lots) | Aspiration, kinked endotracheal tube, tracheal collapse, brachycephalics, laryngeal paralysis, mass lesion, COPD, asthma |
| The funny list of things that obstruct large airways | inhaling your food, kinky tubes, honking lapdogs, pugs, larynxes with stage fright... |
| Doggy blood pH (normal arterial blood gas) | 7.41 7.35-7.46 |
| Kitty blood pH (normal arterial blood gas) | 7.39 7.31-7.46 |
| Doggy PaCO2 (normal arterial blood gas) | 37... 31-42 |
| Kitty PaCO2 (normal arterial blood gas) | 31... 25-37 |
| Doggy bicarb (normal arterial blood gas) | 22... 19-26 mEq/L |
| Kitty bicarb (normal arterial blood gas) | 18... 14-22 mEq/L |
| Doggy PO2 (normal arterial blood gas) | 92... 81-103 mmHg |
| Kitty PO2 (normal arterial blood gas) | 107... 95-118 mmHg |
| Simple primary respiratory acidosis, pH goes... while PCO2 and bicarb both go... | pH goes down, the other two go up (or bicarb stays normal) |
| Simple primary respiratory alkalosis, pH goes...while PCO2 and bicarb both go... | pH goes up, the other two go down (or bicarb stays normal) |
| Nonrespiratory acidosis everything goes... | down |
| Nonrespiratory alkalosis, pH and PCO2 both go...while bicarb goes down. | up |
Created by:
cyzygy
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