Ventilation and Acid-Base Disturbances Quiz

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Questions and Answers

What is the key point regarding the method of oxygen supplementation?

  • Minimizing patient stress is the most important factor
  • The method should only be selected based on patient's weight
  • The method should provide the highest fraction of inspired oxygen (correct)
  • The method should provide the lowest fraction of inspired oxygen

Why is rapid identification of respiratory distress important?

  • To prevent patient fatigue
  • To avoid unnecessary diagnostic tests
  • To initiate appropriate management in a timely manner (correct)
  • To reduce patient stress

What role does the emergency clinician need to play?

  • To only understand general respiratory physiology
  • To understand pathophysiology and management techniques related to common respiratory diseases (correct)
  • To manage common respiratory diseases without understanding pathophysiology
  • To focus on timely diagnosis without understanding pathophysiology

What is the initial presentation spectrum of respiratory distress?

<p>Varied, with some patients presenting with a mild cough and others in fulminant respiratory distress (C)</p> Signup and view all the answers

What is the vital role of rapid identification of respiratory distress?

<p>To initiate stabilization efforts and subsequent diagnostics performed (A)</p> Signup and view all the answers

Why is the ability to localize upper versus lower respiratory tract dysfunction important?

<p>In order to initiate appropriate management in a timely manner (B)</p> Signup and view all the answers

What is the primary problem in patients who do not respond to oxygen?

<p>Ventilation (B)</p> Signup and view all the answers

In patients with metabolic acidosis, what compensatory mechanism may develop to normalize systemic pH?

<p>Hyperventilation (C)</p> Signup and view all the answers

What can cause a decrease in oxyhemoglobin content, adversely affecting the ability of oxygen to carry and deliver oxygen?

<p>Anemia (C)</p> Signup and view all the answers

What medication may cause central respiratory depression in small animal patients?

<p>Fentanyl (A)</p> Signup and view all the answers

What should be provided immediately upon triage for patients presenting in respiratory distress?

<p>Oxygen therapy (B)</p> Signup and view all the answers

What is the mean fraction of inspired oxygen achieved with unilateral nasal catheter for oxygen supplementation?

<p>$30-50%$ (A)</p> Signup and view all the answers

Which method of oxygen supplementation achieves the highest mean fraction of inspired oxygen?

<p>Hyperbaric oxygen (D)</p> Signup and view all the answers

What may lead the clinician to consider laryngeal paralysis with secondary aspiration pneumonia in an older dog with a history of voice change?

<p>$\text{Voice change}$ (A)</p> Signup and view all the answers

What can limit expansion of the thoracic wall, leading to shallow breathing and hypoventilation?

<p>$\text{Pain}$ (D)</p> Signup and view all the answers

What should be asked about depending on the region, to help rule in or out other infectious causes of respiratory illness?

<p>Travel history (D)</p> Signup and view all the answers

Which medication is used for induction of anesthesia in small animal patients and frequently causes respiratory depression or apnea?

<p>Propofol (C)</p> Signup and view all the answers

What is the primary problem in patients who do not respond to oxygen?

<p>Ventilation (D)</p> Signup and view all the answers

Which part of the respiratory system is responsible for filtering, warming, and humidifying the air?

<p>Upper airways (A)</p> Signup and view all the answers

Gas exchange occurs at the level of the alveoli in which part of the respiratory system?

<p>Pulmonary parenchyma (B)</p> Signup and view all the answers

Which of the following is equipped with several built-in defenses against invading pathogens, including nasal hairs, turbinates, and alveolar macrophages?

<p>Upper airways (D)</p> Signup and view all the answers

Hypoxemia is defined as a partial pressure of oxygen in arterial blood (PaO2) less than how many mm Hg?

<p>80 mm Hg (C)</p> Signup and view all the answers

What is the most common cause of hypoxemia in clinical practice?

<p>Ventilation-perfusion (V/ Q) mismatch (A)</p> Signup and view all the answers

Respiratory diseases can be localized to specific regions of the respiratory system. What helps clinicians to identify the affected region?

<p>Breathing sounds (D)</p> Signup and view all the answers

Which part of the respiratory system is responsible for a restrictive breathing pattern and decreased heart and lung sounds on auscultation?

<p>Pleural space (B)</p> Signup and view all the answers

Patients with upper airway disease commonly produce which type of breathing noise?

<p>Stertor (A)</p> Signup and view all the answers

Which disease produces variable thoracic auscultation and may have an impact on both inspiration and exhalation?

<p>Noncardiogenic pulmonary edema (D)</p> Signup and view all the answers

'Flail chest' is associated with which part of the respiratory system?

<p>'Thoracic wall' (A)</p> Signup and view all the answers

Which part of the respiratory system is associated with 'paradoxic breathing pattern'?

<p>'Thoracic wall' (A)</p> Signup and view all the answers

What is the main respiratory stimulus in animals with chronic obstructive pulmonary disease?

<p>Oxygen (B)</p> Signup and view all the answers

What is the key component of emergency stabilization of a patient with respiratory distress?

<p>Obtaining vascular access (B)</p> Signup and view all the answers

What are the commonly used routes for placing a peripheral IV catheter?

<p>Cephalic, accessory cephalic, or lateral saphenous vein (D)</p> Signup and view all the answers

Which drug may cause hypotension when administered to patients in an emergency setting?

<p>Aminophylline (D)</p> Signup and view all the answers

What is the disadvantage of butorphanol and acepromazine?

<p>They have no direct reversal agents (B)</p> Signup and view all the answers

Which drug may cause respiratory depression when administered to patients in an emergency setting?

<p>Diazepam (A)</p> Signup and view all the answers

What is the effect of aminophylline on bronchial smooth muscle?

<p>Relaxation (A)</p> Signup and view all the answers

In which patients can injectable glucocorticoids be a valuable tool?

<p>Patients with upper airway obstruction (A)</p> Signup and view all the answers

What is the route of administration for dexamethasone sodium phosphate?

<p>IV, IM, or SQ (C)</p> Signup and view all the answers

What effect do long-acting steroids have that makes them not recommended in the acute setting?

<p>Mineralocorticoid effects leading to acute plasma volume expansion (D)</p> Signup and view all the answers

What should clinicians establish before administering glucocorticoids to a patient?

<p>Recent use of nonsteroidal anti-inflammatories (A)</p> Signup and view all the answers

What should be considered if congestive heart failure is suspected or not able to be completely ruled out in a patient?

<p>Injectable furosemide (A)</p> Signup and view all the answers

What is the most common underlying disease causing dynamic obstructions in dogs?

<p>Laryngeal paralysis (C)</p> Signup and view all the answers

What is the most common lower airway disease seen in cats?

<p>Feline asthma (C)</p> Signup and view all the answers

What disease can cause noncardiogenic pulmonary edema in dogs and cats?

<p>Head trauma (C)</p> Signup and view all the answers

What is a potentially life-threatening condition involving an obstruction of a pulmonary vessel by a thrombus?

<p>Pulmonary thromboembolism (PTE) (B)</p> Signup and view all the answers

Which disease process can lead to fluid accumulation in the pleural space?

<p>Right-sided heart failure (B)</p> Signup and view all the answers

Which condition can cause a rapid, shallow restrictive breathing pattern in patients?

<p>Pleural effusion (B)</p> Signup and view all the answers

What type of pneumonia can occur due to head trauma or prolonged seizures?

<p>Aspiration pneumonia (A)</p> Signup and view all the answers

What condition should be suspected in patients presenting with respiratory distress, pulmonary crackles, and a concurrent heart murmur?

<p>Cardiogenic pulmonary edema (D)</p> Signup and view all the answers

Which disease can lead to decreased lung sounds ventrally on auscultation?

<p>Pyothorax (A)</p> Signup and view all the answers

What condition can lead to hypoventilation due to decreased outward movements of the thoracic wall during inspiration?

<p>Congenital malformation of the thoracic wall (B)</p> Signup and view all the answers

What is the most common type of lower airway disease seen in dogs?

<p>Chronic bronchitis (A)</p> Signup and view all the answers

What should be suspected in dogs presenting with hemothorax?

<p>Pericardial effusion and pulmonary hemorrhage (C)</p> Signup and view all the answers

What is a potential risk associated with the use of oxygen hoods?

<p>Accumulation of CO2 and condensation (C)</p> Signup and view all the answers

Which oxygen therapy method is described as noninvasive and able to deliver heated and humidified oxygen at concentrations up to 100% with high flow rates?

<p>High-flow oxygen therapy (HFOT) (D)</p> Signup and view all the answers

What is a limitation of using an oxygen cage for oxygen supplementation?

<p>Loss of oxygen concentration when the door is opened (C)</p> Signup and view all the answers

How is nasal oxygen different from an oxygen hood and an oxygen cage?

<p>It provides a more invasive modality of oxygen therapy (C)</p> Signup and view all the answers

Which therapy involves the delivery of 100% oxygen that is pressurized to a value above atmospheric pressure?

<p>Hyperbaric oxygen therapy (C)</p> Signup and view all the answers

What complication can result from prolonged exposure to high oxygen concentrations?

<p>Oxygen toxicity (D)</p> Signup and view all the answers

What method has been shown to achieve an oxygen concentration of 70% within 90 seconds?

<p>Oxygen hoods (A)</p> Signup and view all the answers

What is a potential limitation of nasal prongs for oxygen supplementation?

<p>Inability to fit every patient (B)</p> Signup and view all the answers

What is a potential benefit of high-flow oxygen therapy (HFOT) for hypoxemic patients?

<p>Positive end-expiratory pressure/continuous positive airway pressure (B)</p> Signup and view all the answers

What is the main purpose of hyperbaric oxygen therapy?

<p>To allow more oxygen to be available for diffusion into the pulmonary capillaries (B)</p> Signup and view all the answers

What is a potential risk associated with prolonged exposure to high oxygen concentrations?

<p>Oxygen toxicity (B)</p> Signup and view all the answers

What is an advantage of using an E-collar for making an oxygen hood?

<p>Secures the oxygen tube to the inner aspect of the collar (A)</p> Signup and view all the answers

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