Advancements In Mechanical Ventilation And ABG Interpretation

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Advancements In Mechanical Ventilation And ABG Interpretation


Questions and Answers
  • 1. 

    Pressure Ventilation is the only mode of therapy provided in Mechanical Ventilation?

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    False. Pressure ventilation is not the only mode of therapy provided in mechanical ventilation. There are different modes of mechanical ventilation, including volume ventilation, which delivers a set volume of air to the patient's lungs, and pressure support ventilation, which provides support to the patient's spontaneous breaths. These different modes allow for individualized treatment based on the patient's needs and condition.

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  • 2. 

    Non-Invasive Ventilation supports patients who require therapy from:

    • A.

      Outside the body via trach

    • B.

      Outside the body via face mask, nasal mask

    • C.

      Trach with cuff

    • D.

      Cool aerosol via trach mask

    Correct Answer
    B. Outside the body via face mask, nasal mask
    Explanation
    Non-Invasive Ventilation supports patients who require therapy from outside the body via face mask or nasal mask. This means that the ventilation is delivered to the patient without the need for any invasive procedures, such as a trach with cuff or cool aerosol via trach mask. The use of a face mask or nasal mask allows for the delivery of oxygen or air pressure to the patient's airways, providing support and assistance with breathing.

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  • 3. 

    Risks of complications from CPAP occur besides?

    • A.

      Irritation from mask

    • B.

      Intolerance from air pressure

    • C.

      Dry mouth

    • D.

      Cuff leak

    Correct Answer
    D. Cuff leak
    Explanation
    A cuff leak refers to the air leakage that occurs around the cuff of the endotracheal tube during mechanical ventilation. This can lead to a decrease in the effectiveness of positive pressure ventilation and compromise the patient's respiratory support. It can result in inadequate oxygenation and ventilation, leading to complications such as hypoxemia and respiratory distress. Therefore, the risk of cuff leak is an additional concern besides the other mentioned complications of CPAP, including irritation from the mask, intolerance from air pressure, and dry mouth.

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  • 4. 

    Invasive Ventilation is recommended for patients who are?

    • A.

      Requiring bilevel therapy via face mask

    • B.

      Trached and Intubated

    • C.

      Require Negative Pressure

    • D.

      SNP Ventilation

    Correct Answer
    B. Trached and Intubated
    Explanation
    Invasive ventilation is recommended for patients who are trached and intubated. This means that they have a tracheostomy tube inserted into their windpipe and are also connected to a ventilator through an endotracheal tube. Invasive ventilation is necessary in these cases to provide mechanical support to the patient's breathing and ensure adequate oxygenation and ventilation. Requiring bilevel therapy via face mask, requiring negative pressure, and SNP ventilation are not indicative of the need for invasive ventilation.

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  • 5. 

    Cpap differentiates from Bipap because :

    • A.

      Bipap has an inhalation and an exhalation

    • B.

      Cpap is based off of negative pressure

    • C.

      Cpap is triggered by the patient effort upon exhalation

    • D.

      Bipap is meant for positive pressure only

    Correct Answer
    A. Bipap has an inhalation and an exhalation
    Explanation
    The correct answer is Bipap has an inhalation and an exhalation. This is because Bipap, or bilevel positive airway pressure, is a type of non-invasive ventilation that delivers two different levels of pressure - a higher pressure during inhalation and a lower pressure during exhalation. This allows for better support of breathing for patients with respiratory conditions. Cpap, or continuous positive airway pressure, on the other hand, delivers a constant pressure throughout the respiratory cycle and does not have distinct inhalation and exhalation phases.

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  • 6. 

    Bipap is often used after or because? ​

    • A.

      Post Operation

    • B.

      CPAP has failed to adequately treat the patient

    • C.

      Patient failed to adequately take MDI tx

    • D.

      Cough Assist Therapy has failed to adequately treat the patient

    Correct Answer
    B. CPAP has failed to adequately treat the patient
    Explanation
    The correct answer is CPAP has failed to adequately treat the patient. This means that the patient was initially treated with CPAP (Continuous Positive Airway Pressure) but it was not effective in managing their condition. As a result, the healthcare provider decided to use Bipap (Bi-level Positive Airway Pressure) as an alternative treatment. Bipap provides different pressure levels for inhalation and exhalation, which can be more effective in improving the patient's breathing and oxygenation.

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  • 7. 

    Sip n Puff is assisted technology used to send signals to a device using air pressure by inhalation and exhalation ?

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Sip n Puff is indeed an assisted technology that allows individuals to control devices by inhaling and exhaling air pressure. This technology is commonly used by individuals with limited mobility, such as those with spinal cord injuries, to operate various devices like wheelchairs, computers, and communication aids. By using a mouthpiece equipped with sensors, users can sip or puff air to generate different signals that are then interpreted by the device to perform specific actions. Therefore, the statement is true.

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  • 8. 

    An arterial blood gas (ABG) is a blood test that is performed by taking blood from a Vein? 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Arterial blood gas (ABG) is a blood test that is performed by taking blood from an artery, not a vein. This test is used to measure the levels of oxygen, carbon dioxide, and other gases in the blood, as well as the pH and bicarbonate levels. Arterial blood is usually obtained from the radial artery in the wrist or the femoral artery in the groin. Veins are typically used for venous blood gas (VBG) tests, which provide similar information but are less invasive and easier to perform.

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  • 9. 

    What are the normal pH level values:

    • A.

      7.35 – 7.55

    • B.

      7.00 – 7.56

    • C.

      7.27 – 7.78

    • D.

      7.35 – 7.45

    Correct Answer
    D. 7.35 – 7.45
    Explanation
    The normal pH level values in the given options range from 7.35 to 7.45. pH is a measure of the acidity or alkalinity of a solution, with values below 7 being acidic, 7 being neutral, and values above 7 being alkaline. The given pH range falls within the normal physiological pH range for humans, indicating a slightly acidic to neutral pH level. This range is important for maintaining the proper functioning of various bodily systems and processes.

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  • 10. 

    If the PC02 is abnormal then it is a?

    • A.

      Oxygenation Issue

    • B.

      Metabolic Problem

    • C.

      Respiratory Problem

    • D.

      Poor Perfusion

    Correct Answer
    C. Respiratory Problem
    Explanation
    If the PC02 is abnormal, it indicates a respiratory problem. PC02 is the partial pressure of carbon dioxide in the blood, and an abnormal level can suggest an imbalance in the respiratory system. This could be due to conditions such as hypoventilation or hyperventilation, which can affect the exchange of oxygen and carbon dioxide in the lungs. Therefore, an abnormal PC02 value is indicative of a respiratory problem rather than an oxygenation issue, metabolic problem, or poor perfusion.

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  • 11. 

    Measuring the PA02 in the arterial blood gives us the amount of oxygen in the blood?

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Measuring the PA02 in the arterial blood is a reliable method to determine the amount of oxygen present in the blood. PA02 refers to the partial pressure of oxygen in the arterial blood, which directly reflects the oxygen saturation level. By measuring PA02, healthcare professionals can assess the oxygen-carrying capacity of the blood and identify any abnormalities or deficiencies. Therefore, the statement is true.

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  • 12. 

    What values identify Moderate Hypoxia?

    • A.

      80-100

    • B.

      60-79

    • C.

      20-39

    • D.

      40-59

    Correct Answer
    B. 60-79
    Explanation
    Moderate hypoxia is identified by oxygen saturation levels between 60-79. This range indicates a decrease in the amount of oxygen reaching the body's tissues and can lead to symptoms such as shortness of breath, fatigue, and confusion. Oxygen saturation levels below 60 are considered severe hypoxia, while levels above 80 are considered normal.

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  • 13. 

    If the Bicarbonate is abnormal then it is a?

    • A.

      Respiratory Issue

    • B.

      Ph problem

    • C.

      Hypoxia Problem

    • D.

      Metabolic Problem

    Correct Answer
    D. Metabolic Problem
    Explanation
    If the bicarbonate level is abnormal, it indicates a metabolic problem. Bicarbonate is an important component of the body's acid-base balance, and abnormal levels can indicate an imbalance in the body's metabolism. This could be due to conditions such as metabolic acidosis or metabolic alkalosis, which affect the body's ability to regulate acid-base balance through metabolic processes. Therefore, an abnormal bicarbonate level is indicative of a metabolic problem rather than a respiratory issue, pH problem, or hypoxia problem.

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  • 14. 

    Determine what issue is occurring in this ABG?pH – 7.34PC02 -  49HC03 - 24PA02 – 75Sp02 – 95% 

    • A.

      Respiratory Acidosis w/ moderate hypoxia

    • B.

      Metabolic Alkalosis w/ moderate hypoxia

    • C.

      Respiratory Acidosis w/ severe hypoxia

    • D.

      Respiratory Alkalosis w/severe hypoxia

    Correct Answer
    A. Respiratory Acidosis w/ moderate hypoxia
    Explanation
    The given ABG values indicate a pH of 7.34, which is slightly acidic, and a PCO2 level of 49, which is elevated. These values suggest respiratory acidosis, which occurs when there is an excess of carbon dioxide in the blood due to inadequate ventilation. Additionally, the SpO2 level of 95% indicates moderate hypoxia, which is a decrease in oxygen levels. Therefore, the correct answer is respiratory acidosis with moderate hypoxia.

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  • 15. 

    Is the pH acidotic or alkalotic? Is the PC02 acidotic or alkalotic?pH 7.15PC02 -  49HC03 - 24PA02 – 85Sp02 – 95%​

    • A.

      PH- Alkalotic / PC02 Alkalotic

    • B.

      PH- Acidotic / PC02 Acidotic

    • C.

      PH- Acidotic / PC02 Alkalotic

    • D.

      PH- Alkalotic / PC02 Acidotic

    Correct Answer
    B. PH- Acidotic / PC02 Acidotic
    Explanation
    The given values of pH and PCO2 indicate an acidotic condition. A pH of 7.15 is below the normal range of 7.35-7.45, indicating acidosis. Similarly, a PCO2 level of 49 is above the normal range of 35-45 mmHg, indicating respiratory acidosis. Therefore, the correct answer is "PH- Acidotic / PC02 Acidotic".

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  • 16. 

    Determine the current ABG sample:pH – 7.18PC02 – 61HC03 – 26PA02 – 68Sp02 – 99%

    • A.

      Respiratory Alkalosis with Moderate Hypoxia

    • B.

      Respiratory Acidosis with Mild Hypoxia

    • C.

      Respiratory Acidosis with Moderate Hypoxia

    • D.

      Respiratory Alkalosis with Severe Hypoxia

    Correct Answer
    C. Respiratory Acidosis with Moderate Hypoxia
    Explanation
    The given ABG sample shows a low pH (7.18), high PCO2 (61), and normal bicarbonate (26). This indicates respiratory acidosis, which is characterized by an increase in carbon dioxide levels in the blood. Additionally, the PAO2 (68) indicates moderate hypoxia, which is a decrease in oxygen levels. Therefore, the correct answer is respiratory acidosis with moderate hypoxia.

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  • 17. 

    In order to correct a Respiratory problem with an elevated PC02 it is recommended to:

    • A.

      Decrease Tidal Volume

    • B.

      Decrease the Minute Ventilation

    • C.

      Adjust I:E ratio

    • D.

      Increase Minute Ventilation, RR or Tidal Volume

    Correct Answer
    D. Increase Minute Ventilation, RR or Tidal Volume
    Explanation
    To correct a respiratory problem with an elevated PCO2, it is recommended to increase minute ventilation, respiratory rate (RR), or tidal volume. This is because an elevated PCO2 indicates hypoventilation, which means that the lungs are not effectively removing carbon dioxide from the body. By increasing minute ventilation, RR, or tidal volume, more air is being moved in and out of the lungs, allowing for better gas exchange and the removal of excess carbon dioxide.

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  • 18. 

    What is the formula for minute ventilation?

    • A.

      VT + HR

    • B.

      RR x VT

    • C.

      RR x HR

    • D.

      RR + VT

    Correct Answer
    B. RR x VT
    Explanation
    Minute ventilation is the total volume of air that is moved in and out of the lungs per minute. It is calculated by multiplying the respiratory rate (RR) by the tidal volume (VT). This formula takes into account both the number of breaths taken per minute and the amount of air moved with each breath, providing an accurate measure of the overall ventilation in the lungs.

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  • 19. 

    Calculate the minute ventilation from the patients settings as follows:AC 14 VT 550 Fi02 40% Peep +5​

    • A.

      7.1 Liters

    • B.

      8.5 Liters

    • C.

      7.7 Liters

    • D.

      6.4 Liters

    Correct Answer
    C. 7.7 Liters
    Explanation
    The minute ventilation can be calculated by multiplying the respiratory rate (AC 14) by the tidal volume (VT 550). In this case, the respiratory rate is 14 breaths per minute and the tidal volume is 550 mL. Therefore, the minute ventilation is 14 breaths/minute * 550 mL/breath = 7.7 Liters.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 23, 2017
    Quiz Created by
    FerdinandS
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