Oxygenation & Perfusion Quiz

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True/False on nursing care basics

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Roberta Bell

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Oxygenation & Perfusion Quiz


Oxygenation & Perfusion QuizVersión en línea True/False on nursing care basics por Roberta Bell 1 Oxygenation involves the transfer of oxygen from alveoli to the blood and its delivery to tissues. Yes No 2 Perfusion only refers to oxygen delivery, not carbon dioxide removal. Yes No 3 Perfusion is the flow of blood through the pulmonary and systemic circulations to exchange gases and nutrients. Yes No 4 Monitoring arterial blood gases provides direct information about oxygenation (PaO2) and ventilation (PaCO2). Yes No 5 A pulse oximeter estimates arterial oxygen saturation by light absorbance in the finger or earlobe. Yes No 6 Hypoxemia is high blood oxygen levels. Yes No 7 Adequate oxygenation depends on ventilation, diffusion, and perfusion being matched. Yes No 8 A pulse oximeter directly measures tissue oxygen delivery. Yes No 9 Ventilation and oxygenation are identical processes. Yes No 10 Chest physiotherapy can be used to mobilize pulmonary secretions by rhythmically clapping the patient's chest. Yes No 11 A patient with oxygen saturations of less than 90% and complaining of shortness of breath should be placed in the supine position. Yes No 12 An immobile patient with decreased breath sounds should be advised to use their incentive spirometer Q4hrs. Yes No 13 A nasal cannula is used for the delivery of low-flow supplemental oxygen. Yes No 14 During the assessment of the lungs, a nurse notes a popping or rattling sound, heard during exhalation. This should be documented as wheezing. Yes No 15 Patients with home O2 should be taught to adjust the oxygen flow rate if they are feeling short of breath. Yes No 16 A nurse should assess tracheostomy patency and breath sounds regularly and perform suctioning using sterile technique to maintain a clear airway. Yes No 17 The alveoli, which are the tiny air sacs within the lungs, are critical sites for gas exchange, where oxygen enters the blood and carbon dioxide is expelled. Yes No 18 It is appropriate to routinely instill normal saline into the tracheostomy before suctioning to loosen secretions. Yes No 19 A non‑rebreather mask delivers a high concentration of oxygen when set at flow rates of 10–15 L/min, and the reservoir bag must remain inflated during inspiration to ensure adequate oxygen delivery. Yes No 20 Humidification should be added to supplemental oxygen—especially at higher flow rates or when delivered via a tracheostomy. Yes No 21 Surfactant, a substance coating the alveoli, plays a vital role by reducing surface tension, which prevents these sacs from collapsing and ensures efficient breathing. Yes No 22 Most oxygen (97%) is carried by red blood cells in the form of carboxyhemoglobin. Yes No 23 Atelectasis occurs when air passages or alveoli collapse, often affecting at least one lobe of the lung. Yes No 24 Percussion is performed to evaluate breath sounds. Yes No

Oxygenation & Perfusion Quiz

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Oxygenation & Perfusion QuizVersión en línea

por Roberta Bell

Oxygenation involves the transfer of oxygen from alveoli to the blood and its delivery to tissues.

Perfusion only refers to oxygen delivery, not carbon dioxide removal.

Perfusion is the flow of blood through the pulmonary and systemic circulations to exchange gases and nutrients.

Monitoring arterial blood gases provides direct information about oxygenation (PaO2) and ventilation (PaCO2).

A pulse oximeter estimates arterial oxygen saturation by light absorbance in the finger or earlobe.

Hypoxemia is high blood oxygen levels.

Adequate oxygenation depends on ventilation, diffusion, and perfusion being matched.

A pulse oximeter directly measures tissue oxygen delivery.

Ventilation and oxygenation are identical processes.

Chest physiotherapy can be used to mobilize pulmonary secretions by rhythmically clapping the patient's chest.

A patient with oxygen saturations of less than 90% and complaining of shortness of breath should be placed in the supine position.

An immobile patient with decreased breath sounds should be advised to use their incentive spirometer Q4hrs.

A nasal cannula is used for the delivery of low-flow supplemental oxygen.

During the assessment of the lungs, a nurse notes a popping or rattling sound, heard during exhalation. This should be documented as wheezing.

Patients with home O2 should be taught to adjust the oxygen flow rate if they are feeling short of breath.

A nurse should assess tracheostomy patency and breath sounds regularly and perform suctioning using sterile technique to maintain a clear airway.

The alveoli, which are the tiny air sacs within the lungs, are critical sites for gas exchange, where oxygen enters the blood and carbon dioxide is expelled.

It is appropriate to routinely instill normal saline into the tracheostomy before suctioning to loosen secretions.

A non‑rebreather mask delivers a high concentration of oxygen when set at flow rates of 10–15 L/min, and the reservoir bag must remain inflated during inspiration to ensure adequate oxygen delivery.

Humidification should be added to supplemental oxygen—especially at higher flow rates or when delivered via a tracheostomy.

Surfactant, a substance coating the alveoli, plays a vital role by reducing surface tension, which prevents these sacs from collapsing and ensures efficient breathing.

Most oxygen (97%) is carried by red blood cells in the form of carboxyhemoglobin.

Atelectasis occurs when air passages or alveoli collapse, often affecting at least one lobe of the lung.

Percussion is performed to evaluate breath sounds.