Which of the following would cause an increase in the amount of exhaled carbon dioxide?
Increased cardiac output
All of the following are signs of
... [Show More] hypoxia except
dehydration
Inhalation occurs when the
diaphragm and intercostal muscles contract and cause a decrease in intrathoracic pressure.
Based on current guidelines in which of the following situations should supplemental oxygen be administered
Exposure to carbon monoxide and an oxygen saturation of 95%
A ventilation/perfusion mismatch occurs when.
A disruption in blood flow inhibits the exchange of oxygen and carbon dioxide in the lungs even though the alveoli are filled with fresh oxygen
Your protocols state that during the first few minutes of working on a cardiac arrest patient, you should provide passive ventilation. This means that you will:
allow recoil of the chest between compressions to draw air into the lungs
Which of the following factors will cause a decreased minute volume in an adult
shallow breathing
The main advantage of the Venturi mask is:
the use of its fine adjustment capabilities in the long-term management of physiologically stable patients.
Which of the following is a late sign of hypoxia
cyanosis
Central chemoreceptors located in the medulla provide feedback to increase the rate and depth of breathing when they sense:
slight increases in carbon dioxide or a decrease in the pH of the cerebrospinal fluid.
While eating dinner, your partner suddenly grabs his throat and has a panicked look on his face. He has a weak cough, faint inspiratory stridor, and cyanosis around the lips. You should:
stand behind him and administer abdominal thrusts.
The partial pressure of oxygen in the alveoli is___ mm Hg while the partial pressure of carbon dioxide in the alveoli is ___ mm Hg
104, 40
The process of exchanging oxygen and carbon dioxide between the alveoli and blood of the capillaries is called
external respiration
Which of the following statements regarding oxygenation and ventilation is correct
In mines or confined places, where oxygen levels are low, ventilation may continue despite adequate oxygenation.
Which of the following oxygen flow meters is not affected by gravity and could be used in any position when attached to an oxygen cylinder
Bourdon-gauge flowmeter
The most significant complication associated with oropharnygeal suctioning is
Hypoxia due to prolonged suction attempts
The primary waste products of aerobic metabolism is
Carbon dioxide
Which of the following statements regarding the one person bag valve mask technique is correct
Adequate tidal volume is often difficult to achieve when one EMT is operating the bag-valve mask.
While providing CPAP to a patient in severe respiratory distress you note that his heart rate has increased by 20 breaths/minute. He is conscious but no longer following verbal commands. You should
Remove the CPAP device and ventilate him with a BVM
Complications associated with using a manually triggered ventilation device include
lung tissue injury and gastric distention.
intrapulmonary shunting occurs when
blood coming from the right side of the heart bypasses nonfunctional alveoli and returns to the left side of the heart in an unoxygenated state.
After ___ minutes without oxygen brain damage is very likely
6-10
Without adequate oxygen, the body's cells:
incompletely convert glucose into energy, and lactic acid accumulates in the blood.
Which of the following structures is contained within the mediastinum
esophagus
Which of the following statements regarding positive pressure ventilation is correct
With positive-pressure ventilation, more volume is required to have the same effects as normal breathing.
Which of the following organs is or tissues can survive the longest without oxygen
Muscles
To select the proper size oropharyngeal airway, you should measure from the:
corner of the mouth to the earlobe.
Despite your attempts to coach a conscious young female's respirations, she continues to hyperventilate with a marked reduction in tidal volume. You should:
explain to her that you will assist her ventilations.
With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing mask is capable of delivering up to ______% inspired oxygen.
90
An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than:
500 psi
Proper technique for suctioning the oropharynx of an adult patient includes:
suctioning while withdrawing the catheter from the oropharynx.
Suctioning the oral cavity of an adult should be accomplished within:
15 seconds
Structures of the lower airway include all of the following, EXCEPT the:
epiglottis
A nasopharyngeal airway is inserted
with the bevel facing the septum if inserted into the right nare
Prior to applying a nonrebreathing mask to a patient you must ensure that the
reservoir bag is fully inflated.
The hypoxia drive is influenced by
Low blood oxygen levels
The proper technique for sizing an oropharyngeal airway before insertion is to measure the device from
corner of the mouth to the earlobe. [Show Less]