Oxygenation Assessments
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- The Patient InterviewThe Physical Examination and Its Basis in PhysiologyPulmonary Function Study AssessmentsArterial Blood Gas AssessmentsOxygenation AssessmentsCardiovascular System AssessmentsRadiologic Examination of the ChestOther Important Tests and ProceduresThe Therapist-Driven Protocol Program and the Role of the Respiratory TherapistRespiratory Failure and the Mechanical Ventilation ProtocolRecording Skills: The Basis for Data Collection, Organization, Assessment SkillChronic Obstructive Pulmonary Disease (COPD), Chronic Bronchitis, and EmphysemaAsthmaBronchiectasisCystic FibrosisPneumoniaLung AbscessTuberculosisFungal Diseases of the LungPulmonary EdemaPulmonary Vascular Disease: Pulmonary Embolism and Pulmonary HypertensionFlail ChestPneumothoraxPleural Effusion and EmpyemaKyphoscoliosisInterstitial Lung DiseasesCancer of the LungAcute Respiratory Distress SyndromeGuillain-Barré SyndromeMyasthenia GravisSleep ApneaClinical Manifestations Common with Newborn and Early Childhood Respiratory DisMeconium Aspiration SyndromeTransient Tachypnea of the NewbornRespiratory Distress SyndromePulmonary Air Leak SyndromesRespiratory Syncytial Virus (Bronchiolitis or Pneumonitis)Bronchopulmonary DysplasiaCongenital Diaphragmatic HerniaCongenital Heart DiseasesCroup Syndrome: Laryngotracheobronchitis and Acute EpiglottitisNear Drowning/Wet DrowningSmoke Inhalation, Thermal Injuries, and Carbon Monoxide IntoxicationAtelectasis
Question 1
Free
Multiple Choice
When a sample of arterial blood is analyzed for the pressure of oxygen (PaO?), the value comes from the:
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blood plasma.
leukocytes.
hemoglobin.
erythrocytes.
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Question 2
Free
Multiple Choice
A patient has been exposed to carbon monoxide during a house fire. An ABG result shows a normal PaO?. How should the patient's PaO? value be interpreted?
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The PaO2 is being falsely elevated by the carbon monoxide.
The PaO2 is being falsely decreased by the carbon monoxide.
The PaO2 is accurate.
The PaO2 is a false measurement because the presence of carbon monoxide makes the analyzer unable to determine the PaO2.
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Question 3
Free
Multiple Choice
A person's C(a-v)O? increases in all of the following situations EXCEPT:
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seizures.
peripheral shunting.
hyperthermia.
exercise.
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Question 4
Free
Multiple Choice
A sample of blood has been taken from a patient's pulmonary artery. What mixed venous oxygen saturation value (SvO?) would indicate that the patient is normal?
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40 mm Hg
95 mm Hg
75%
97%
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Question 5
Free
Multiple Choice
A patient has a chronic respiratory disorder and vasoconstriction of her pulmonary vascular system. What is the chief control over this vasoconstriction?
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Low PAO2
Low PaO2
High PaCO2
High pH
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Question 6
Multiple Choice
A condition that will cause hypoxic hypoxia is:
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cyanosis.
decreased cardiac output or heart failure.
hypoventilation from an overdose of a sedative medication.
carbon monoxide poisoning.
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Question 7
Multiple Choice
A condition that will cause anemic hypoxia is:
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cyanide poisoning.
decreased cardiac output or heart failure.
polycythemia.
carbon monoxide poisoning.
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Question 8
Multiple Choice
The respiratory therapist is evaluating a patient in the intensive care unit who shows signs of tissue hypoxia. Laboratory results reveal the following: HgB 14.8 grams, CaO? 19.6 vol. %, PaO? 102 mm Hg, a-v difference 9.8 vol. %, PvO? 24 mm Hg. Based on these results, which of the following types of hypoxia does this patient have?
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Hypoxic hypoxia
Anemic hypoxia
Circulatory hypoxia
Histotoxic hypoxia
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Question 9
Multiple Choice
The respiratory therapist is reviewing a patient's electronic medical record to try to verify if the patient has tissue hypoxia. Which of the following laboratory values is MOST likely to correlate with tissue hypoxia?
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Metabolic acidosis
Thrombocytopenia
Hypokalemia
Bilirubinemia
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Question 10
Multiple Choice
A patient is mildly hypoxemic. Which of the following signs would the respiratory therapist expect to find in this patient?
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An increase in the patient's breathing rate and heart rate
A decrease in systemic blood pressure
Cardiac dysrhythmias on an EKG
Anemia
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