Chap 39 oxygen ML3

A child is admitted to the pediatric division with an acute asthma attack. The nurse assesses the lung sounds and respiratory rate. The mother asks the nurse, "Why is his chest sucking in above his stomach? The nurse's most accurate response is:

"He is using his chest muscles to help him breathe." The client will use accessory muscles to ease dyspnea and improve breathing.

In which client should the nurse prioritize assessments for respiratory depression?

A client taking opioids for cancer pain Many medications affect the function of the respiratory system and depress the respiratory system. The nurse should monitor clients taking certain medications, such as opioids, for rate and depth of respirations. Beta-adrenergic blockers, antibiotics, and insulin do not appreciably affect the respiratory system.

The pediatric nurse is caring for four clients. Which client will receive the greatest benefit from the use of an oxygen analyzer to assure that the client is receiving the prescribed amount of oxygen?

3-year old in croup tent An oxygen analyzer is used most commonly when caring for newborns in isolettes, children in croup tents, and clients who are mechanically ventilated. Other answers are incorrect.

Which guideline is recommended for determining suction catheter depth when suctioning an endotracheal tube?

Using a suction catheter with centimeter increments on it, insert the suction catheter into the endotracheal tube until the centimeter markings on both the endotracheal tube and catheter align, and insert the suction catheter no further than an additional 1 cm. Guidelines to determine suction catheter depth include the following: Using a suction catheter with centimeter increments on it, insert the suction catheter into the endotracheal tube until the centimeter markings on both the endotracheal tube and catheter align, and insert the suction catheter no further than an additional 1 cm past the length of the endotracheal tube. Combine the length of the endotracheal tube and any adapter being used, and add an additional 1 cm. Using a spare endotracheal or tracheostomy tube of the same size as being used for the client, insert the suction catheter to the end of the tube and note the length of catheter used to reach the end of the tube. For a closed system, combine the length of the endotracheal or tracheostomy tube and any adapter being used, and add an additional 1 cm.

Which teaching about the humidifier is important for the nurse to provide to a client using oxygen?

It decreases dry mucous membranes via delivering small water droplets. The humidifier produces small water droplets that are delivered during oxygen administration to decrease dry mucous membranes. The oxygen analyzer measures the percentage of delivered oxygen to determine whether the client is receiving the prescribed amount. The flowmeter is a gauge used to regulate the amount of oxygen that a client receives. The provider prescribes concentration.

A client with no prior history of respiratory illness has been admitted to a postoperative unit following foot surgery. What intervention should the nurse prioritize in an effort to prevent postoperative pneumonia and atelectasis during this time of reduced mobility following surgery?

educating the client on the use of incentive spirometry Incentive spirometry maximizes lung inflation and can prevent or reduce atelectasis and help mobilize secretions. Pursed-lip breathing primarily addresses dyspnea and anxiety. Suctioning is only indicated when clients are unable to independently mobilize secretions. Corticosteroids are not typically used as a preventive measure for respiratory complications after surgery.

A client who was prescribed CPAP reports nonadherence to treatment. What is the priority nursing intervention?

Ask the client what factors contribute to nonadherence. The nurse must first assess the reasons that contribute to nonadherence; interventions cannot be determined without a thorough assessment. Then, the nurse can work with the health care provider to find alternate treatment options if necessary, and then document the care.

A nurse using a pulse oximeter to measure a client's SpO2 obtains a reading of 95%. What is the nurse's most appropriate action?

Document this expected assessment finding. A range of 95% to 100% is considered normal oxygen saturation. As such, there is no need to change the client's position, encourage deep-breathing exercises and coughing, or to review the client's medication history.

A nurse must take a client's pulse oximetry reading. The nurse is explaining the technique to the client. Which statements about pulse oximetry are true? Select all that apply.

Once the oximetry probe is correctly placed, a beam of red and infrared light travels through the tissue and blood vessels. Sensors are available for use on the finger, toe, foot, earlobe, forehead, and bridge of the nose. The oximetry sensor uses a beam of red and infrared light to calculate the amount of light absorbed by arterial blood. Sensors are available for use on the finger, toe, foot, earlobe, forehead, and bridge of the nose. Inadequate circulation will result in inaccurate readings. Pulse oximetry measurements are noninvasive. Normal range for an infant is 95% to 100%. Pulse oximeters display heart rate, not respiratory rate.

A client's primary care provider has informed the nurse that the client will require thoracentesis. The nurse should suspect that the client has developed which disorder of lung function?

Pleural effusion Thoracentesis involves the removal of fluid from the pleural space, either for diagnostic purposes or to remove an accumulation of fluid in this space (pleural effusion). Tachypnea and wheezes are not symptoms that directly indicate a need for thoracentesis. Pneumonia would necessitate the procedure only if the infection resulted in pleural effusion.

In which client would the nurse assess for a depressed respiratory system?

a client taking opioids for cancer pain

Oxygen and carbon dioxide move between the alveoli and the blood by:

diffusion. Oxygen and carbon dioxide move between the alveoli and the blood by diffusion, the process in which molecules move from an area of greater concentration or pressure to an area of lower concentration or pressure.

The nurse is conducting a respiratory assessment of a client age 71 years who has been recently admitted to the hospital unit. Which assessment finding should the nurse interpret as abnormal?

fine crackles to the bases of the lungs bilaterally Except in the case of infants, fine crackles always constitute an abnormal assessment finding. A respiratory rate of 18 is within acceptable range. Vesicular sounds over peripheral lung fields and resonance on percussion are expected assessment findings.

During oxygen administration to the client, which pieces of equipment would enable the nurse to regulate the amount of oxygen delivered?

flow meter In order to regulate the amount of oxygen delivered to the client, the nurse should use a flow meter. A flow meter is attached to the source of oxygen. An oxygen analyzer is a device that measures the percentage of delivered oxygen to determine if the client is receiving the amount prescribed by the physician. A humidifier is a device that produces small water droplets and may be used during oxygen administration because oxygen dries the mucous membranes. A nasal cannula is a hollow tube with half-inch prongs placed into the client's nostrils. It provides a means for administering a low concentration of oxygen.

Which is a major organ of the upper respiratory tract?

pharynx The pharynx, mouth, and nose are major organs of the upper respiratory tract. The trachea, bronchi, and lungs are major organs of the lower respiratory tract.

When reviewing data collection on a client with a cardiac output of 2.5 liter/minute, the nurse inspects the client for which symptom?

rapid respirations Normal cardiac output averages from 3.5 to 8.0 liter/minute. With decreased cardiac output, there is a reduction in the amount of circulating blood that is available to deliver oxygen to the tissues. The body compensates by increasing the respiratory rate to increase oxygen delivery to the tissues. The client with decreased cardiac output would gain weight, have decreased urine output, and display a thready pulse.

The nurse is caring for a client who has had a percutaneous tracheostomy (PCT) following a motor vehicle accident and has been prescribed oxygen. What delivery device will the nurse select that is most appropriate for this client?

tracheostomy collar A tracheostomy collar delivers oxygen near an artificial opening in the neck. This is appropriate for a client who has had a PCT. All other devices are less appropriate for this client.

The nurse is teaching the client with a pulmonary disorder about deep breathing. The client asks, "Why is it important to start by breathing through my nose, then exhaling through my mouth?" Which appropriate response would the nurse give this client?

"Breathing through your nose first will warm, filter, and humidify the air you are breathing." Nasal breathing allows the air to be warmed, filtered, and humidified. Nose breathing does not encourage the client to sit up straight. The purpose of nasal breathing is not to prevent germs from entering the stomach or to discourage snoring.

The nurse performs a respiratory assessment on a healthy client. While listening to the client's lungs, the nurse hears them fill with air and then return to a resting position. The nurse deems the findings normal. Which is the best way to document this respiratory assessment and lung sounds?

"Respiratory rate 14, even, regular, and easy; depth with acceptable parameters; lung sounds clear all lobes bilaterally; absence of adventitious lung sounds; absence of spontaneous cough; oxygen saturation 98%." The most accurate and complete nursing documentation of normal lungs sounds in a health client is "Respiratory rate 14, even, regular, and easy; depth with acceptable parameters; lung sounds clear all lobes bilaterally; absence of adventitious lung sounds; absence of spontaneous cough; oxygen saturation 98%" because it provides the respiratory type, rate, depth, ventilation efficiency, clarity of all lobes of both lungs, absence of any abnormality and the oxygen saturation rate to provide a total respiratory picture of the healthy client. The other documentations are not complete, and each has an abnormal respiratory factor included.

A client who utilizes a portable oxygen device reports planning to attend an upcoming bonfire on the beach. What is the appropriate nursing response?

"When using portable oxygen, you should avoid any fire." Although freedom to move about comes with portable oxygen, the client should be educated about the dangers of oxygen near fire; therefore, fires and anyone smoking should be avoided. Saltwater does not increase the potential for oxygen toxicity.

A nurse is calculating the cardiac output of an adult with a stroke volume of 75 mL and a pulse of 78 beats/min. What number would the nurse document for this assessment?

5,850 mL Cardiac output is determined by multiplying the stroke volume by the heart rate/min, which equals 5,850 mL (75 x 78=5,850).

The nurse is caring for an older adult client on home oxygen who has dentures but has quit wearing them stating that the dentures irritate the gums. What nursing action is appropriate?

Check the fit of the oxygen mask. The fit of the oxygen mask can be affected by the discontinuation of wearing dentures. The nurse should check the fit to make sure the client is getting the prescribed amount of oxygen. Other answers are inappropriate actions that do not address the problem.

The nurse assesses a client and detects the following findings: difficulty breathing, increased respiratory and pulse rates, and pale skin with regions of cyanosis. What condition would the nurse suspect as causing these respiratory alterations?

Hypoxia Hypoxia is a condition in which an inadequate amount of oxygen is available to cells. Difficulty breathing, increased respiratory and pulse rates, and pale skin with regions of cyanosis are all signs of hypoxia. Hyperventilation is an increased rate and depth of ventilation, above the body's normal metabolic requirements. Perfusion refers to the process by which oxygenated capillary blood passes through body tissues. Atelectasis refers to collapsed alveoli.

The nurse schedules a pulmonary function test to measure the amount of air left in a client's lungs at maximal expiration. What test does the nurse order?

Residual Volume (RV) During a pulmonary function test the amount of air left in the lungs at the end of maximal expiration is called residual volume. Tidal volume refers to the total amount of air inhaled and exhaled with one breath. Total lung capacity is the amount of air contained within the lungs at maximum inspiration. Forced expiratory volume measures the amount of air exhaled in the first second after a full inspiration; it can also be measured at 2 or 3 seconds.

The nurse is caring for a client who has been prescribed humidified oxygen at 6 L/minute. Which type of liquid will the nurse gather to set up the humidifier?

distilled water Distilled water is used when humidification is desired. Other answers are incorrect.

A nurse assessing a client's respiratory effort notes that the client's breaths are shallow and 8 per minute. Shortly after, the client's respirations cease. Which form of oxygen delivery should the nurse use for this client?

Ambu bag If the client is not breathing with an adequate rate and depth, or if the client has lost the respiratory drive, a manual resuscitation bag (Ambu bag) may be used to deliver oxygen until the client is resuscitated or can be intubated with an endotracheal tube. Oxygen masks may cover only the nose and mouth and can vary in the amount of oxygen delivered. A nasal oxygen cannula is a device that consists of a plastic tube that fits behind the ears, and a set of two prongs that are placed in the nostril. An oxygen tent is a tentlike enclosure within which the air supply can be enriched with oxygen to aid a client's breathing. Oxygen masks, nasal cannula, and oxygen tents are used for clients who have a respiratory drive.

A nurse is admitting a 6-year-old child after a tonsillectomy to the surgical unit. The nurse obtains the client's weight and places electrocardiogram (EKG) leads on the chest and a pulse oximeter on the left finger. The client's heart rate reads 100 bpm and the pulse oximeter reads 99%. These readings best indicate:

adequate tissue perfusion. Pulse oximetry is often used as a measure of tissue perfusion. An oxygen saturation of greater than 94% is typically indicative of good tissue perfusion.

During the physical assessment of a client who has been inactive due to a leg injury, the nurse notes that the client tends to breathe very shallowly. What technique should the nurse teach the client in order to breathe more efficiently?

deep breathing The nurse should teach deep breathing techniques to the client who is recovering from an injury and tends to breathe shallowly in order to help the client breathe more efficiently. Deep breathing is a technique for maximizing ventilation. Taking in a large volume of air fills alveoli to a greater capacity, thus improving gas exchange. Pursed-lip breathing is a form of controlled ventilation in which the client consciously prolongs the expiration phase of breathing, which helps clients, especially with COPD, to eliminate more than the usual carbon dioxide from the lungs. It is used to increase the volume of air exchanged during inspiration and expiration. Incentive spirometry, a technique for deep breathing using a calibrated device, encourages clients to reach a goal-directed volume of inspired air; however, it is not always recommended for routine prophylactic use in postoperative adult and pediatric clients. Diaphragmatic breathing is breathing that promotes the use of the diaphragm rather than the upper chest muscles. It is used to increase the volume of air exchanged during inspiration and expiration in client with COPD.

A client returns to the telemetry unit after an operative procedure. Which diagnostic test will the nurse perform to monitor the effectiveness of the oxygen therapy ordered for the client?

pulse oximetry Pulse oximetry is useful for monitoring clients receiving oxygen therapy, titrating oxygen therapy, monitoring those at risk for hypoxia, and postoperative clients. Peak expiratory flow rate is used to monitor severe respiratory diseases and the degree of disease control. Spirometry is used in the postoperative period to measure the volume of air in liters exhaled or inhaled. Spirometry also evaluates lung function and airway obstruction but does not specifically monitor the effectiveness of oxygen therapy. Thoracentesis is a procedure that allows the physician to aspirate pleural fluid for diagnostic or therapeutic purposes.