ADMA Hypoxia Airway Algorithm Quiz
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This quiz is for students learning the ADMA Hypoxia Airway Algorithm.
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Question 1 of 11
During a sedation case, you notice the patient’s skin, lips, gums, and blood are starting to look pale. A glance at the SPO2 monitor displays an Oxygen saturation of 90%. After pausing dentistry, what is the first step you will take to respond?Correct
Correct. Determining whether or not the patient has a drive to breathe is the first step in the hypoxia airway algorithm to diagnose and treat a hypoxic patient.Incorrect
Determining whether or not the patient has a drive to breathe is the first step in the hypoxia airway algorithm to diagnose and treat a hypoxic patient. This is done by assessing whether or not you see chest rise and fall.
Question 2 of 11
A patient to drive to breathe can be assessed by observing their:Correct
Observing a patient’s chest rise and fall, or absence there of, is an appropriate means of determining if they have a drive to breathe.Incorrect
Observing a patient’s chest rise and fall, or absence there of, is an appropriate means of determining if they have a drive to breathe.
Question 3 of 11
In the context of dental sedation, the most likely cause of apnea is:Correct
Apnea, AKA a loss of the drive to breathe, is most likely caused by the respiratory depressive effects of sedation medication.Incorrect
Apnea, AKA a loss of the drive to breathe, is most likely caused by the respiratory depressive effects of sedation medication.
Question 4 of 11
Select all the options below that are acceptable treatment responses for apnea.Correct
Good job! The order of operations is:
Stimulate / Anatomy adjust
Try LMA & consider reversal (Call 911)Incorrect
Chest compressions are indicated in cardiac scenarios, but are not necessary if the airway issue still presents with a palpable pulse at a radial artery.
Epinephrine is indicated in some cardiac events, but is not advised as a medication to treat dental sedation-related apnea episodes.
The order of operations is:
Stimulate / Anatomy adjust
Try LMA & consider reversal (Call 911)
Question 5 of 11
If a patient’s chest is rising and falling, what information does this tell us?Correct
Chest rise and fall indicates that the patient has a drive to breathe.Incorrect
Chest rise and fall indicates that the patient has a drive to breathe. This is represented as the first step in the airway algorithm.
Question 6 of 11
Which of the following options are appropriate diagnosis methods to determine adequate ventilation? (Check all that apply.)Correct
Chest rise and fall determines a patient’s drive to breathe, but it does not tell us if they have adequate ventilation. For example, a patient could have chest rise and fall, but they could be obstructed by foreign body. In this instance, their chest would be moving, but no air would be exchanging between their lungs and the room. This is an instance where chest rising fall is yes, but ventilation is no.
Oxygen saturation provides us with a reading of how well the patient’s blood is oxygenated. It does not tell us whether there is gas exchange occurring between the lungs in the room. For example, a patient could be experiencing a laryngeal spasm that caused an obstruction. Their oxygen saturation at that point in time might be 98%. This would be an instance where oxygen saturation was appropriate, but ventilation was not.
A patient’s respiratory rate represents the number of times they are breathing in a given minute. If the patient is not ventilating appropriately, their respiratory rate does not help us diagnose whether they have an obstruction or not. Instead, we would want to use capnography, phonation, or auscultation to determine adequate ventilation.
Question 7 of 11
If there are no waveforms on the capnography readout, and the reading is a flat line, is this an indication of adequate ventilation?Correct
Capnography tells us how much CO2 is present in a patient’s exhaled breath. When we see the presence of CO2, we can determine that there is gas exchange between the lungs and the room air. If there is no CO2 present, the capnography waveform will be flat. This is an indication that there is not gas exchange between the lungs and the room. In other words, an indication of no ventilation.
Question 8 of 11
You are diagnosing a patient whose oxygen saturation has dropped to 90%. You ask them how they are doing and they look at you and say, “I’m doing alright.”
Is this patient obstructed?Correct
If a patient can speak to you, air is able to move past their vocal cords. This is an indication of ventilation. If a patient is ventilating, they are not obstructed.
Question 9 of 11
During a sedation case, you notice the oxygen saturation levels have dropped to 88%. You pause dentistry and determine that the patient’s chest is rising and falling. By looking at your monitor, you can see that there is no waveform on the capnography readout. You ask the patient how they are doing and they look at you, but do not say anything. What is your diagnosis?Correct
Question 10 of 11
During a sedation case, your patient’s oxygen saturation drops. You pause dentistry and determine that the chest is rising and falling.
You suspect that your patient is obstructed because your capnography read out is flat and the patient cannot speak to you. You adjust the patient’s anatomy, and confirm the absence of a foreign body. What is the correct diagnosis?Correct
If you have ruled out anatomy and foreign body as possible causes of obstruction, laryngospasm is the most likely diagnosis.
Laryngospasm is the larynx closing itself to protect the lungs from potentially aspirating a foreign body. Bronchospasm is the tightening of the muscles that line your bronchi. You can tell the difference between bronchospasm and laryngospasm by determining ventilation. With laryngospasm, ventilation will not be present. With bronchospasm, ventilation will be present along with wheezing.
Question 11 of 11
You are in a hypoxia situation and have accurately worked your way through the airway algorithm to bronchospasm. What is the first thing you do to diagnose the cause?Correct