Name: checking breathing patterns and respiratory rate
Uploaded: 2024-06-20T13:02:59.000Z
Duration: 1 min 20 s
Channel: JoVE

评估通气功能在监测患者健康状况中起着至关重要的作用。
呼吸的变化可能预示着严重的健康问题，例如头部外伤导致的脑干损伤。
呼吸频率是通气评估的关键组成部分，涉及完整吸气和呼气次数的计数。
患者必须对监测过程保持不知情，以获得准确的呼吸频率。意识到呼吸可能会影响呼吸的频率和深度。
呼吸频率通过计算每分钟的呼吸次数来测量，以胸壁的起伏为依据。
成年人的平均呼吸频率为每分钟12-18次。
呼吸急促是指呼吸频率过快，每分钟超过20次；而呼吸过缓是指呼吸频率过慢，每分钟少于12次。
呼吸频率超过每分钟24次的患者需要定期观察。若呼吸频率超过每分钟27次，则需立即就医，因为这可能预示着72小时内会发生心脏骤停。
呼吸频率低于八次也表明需要紧急医疗护理。

通气评估：呼吸频率

Assessment of Ventilation I: Respiratory Rate

通气评估

通气评估对于监测患者的健康状况至关重要。呼吸是最容易获得的生命体征之一，可以深入了解许多身体系统的功能，并可以表明严重的健康问题，例如头部外伤造成的脑干损伤。

评估通气的关键指南：

<ol style="margin-left: 12px">
	<li>非侵入性观察：保持通气评估的准确性至关重要。在患者不知情的情况下观察患者的呼吸对于实现这一目标至关重要。这种方法有助于避免由于患者意识到被观察而可能发生的呼吸模式改变，从而确保更准确的评估。</li>
	<li>综合评估：考虑患者平时的通气频率、任何疾病或状况对其呼吸功能的影响、呼吸和心血管功能之间的相互作用以及当前治疗的影响。</li>
	<li>客观测量：在呼吸频率评估中，重点应放在频率、深度和呼吸节律上。这些客观测量对于准确评估患者的呼吸状态至关重要。它们提供了有效的患者护理所必需的精确且可测量的数据。</li>
</ol>

呼吸频率评估：

<ul style="list-style-type: disc; margin-left: 35px;">
	<li>正常频率：成人呼吸频率的平均范围通常为每分钟 12 至 18 次呼吸。呼气时间大约是吸气时间的两倍。然而，这些比率随着年龄的变化而变化，并且通常会在人的一生中下降。</li>
	<li>窘迫迹象：患者平均呼吸频率每分钟偏差 3 到 5 次就可能表明呼吸窘迫。呼吸频率超过每分钟 24 次呼吸需要定期观察和密切监测，特别是如果伴有其他生理变化。</li>
	<li>危急频率：呼吸频率高于每分钟 27 次或低于 8 次的患者需要立即就医。</li>
</ul>

使用技术：呼吸暂停监测仪可以通过感应胸壁运动来帮助评估呼吸频率。缺乏运动会触发呼吸暂停警报，这对于在医院和家里监测婴儿是否出现长时间呼吸暂停事件特别有用。

最佳实践：为了有效测量呼吸频率，观察并触诊胸壁运动；估计呼吸可能会导致不准确。当呼吸发生变化时，始终考虑所有变量，以确保最准确的评估。

结论：准确的通气评估对于检测呼吸系统损害的早期迹象并确保有效的患者护理至关重要。通过了解呼吸频率评估的细微差别并遵守这些指南，医疗保健提供者可以更好地管理患者的治疗结果并及时应对新出现的健康问题。

通气功能评估  
通气评估对于监测患者健康状况至关重要。呼吸是临床上最易获取的生命体征之一……

assessment-of-ventilation-i-respiratory-rate

Education

教育

JoVE Core

Nursing

护理学

Unit 1

第一单元

Vital Signs: Respiration

生命体征：呼吸

KEY TERMS AND CONCEPTS

关键术语与概念

checking breathing patterns and respiratory rate

Ventilation assessment helps monitor a patient’s health status by checking breathing patterns and respiratory rate. Respiration is one of the easiest vital signs to observe. It can also show problems in several body systems, including serious issues such as brainstem injury after head trauma.

Accurate assessment depends on unobtrusive observation. The patient should not know they are being watched, because awareness can change breathing patterns. A full evaluation also considers the patient’s usual breathing rate, the effect of disease or other conditions, the link between respiratory and cardiovascular function, and any ongoing therapies.

Respiratory rate assessment focuses on rate, depth, and rhythm. These objective measurements give precise data about respiratory status. In adults, the normal range is usually 12 to 18 breaths per minute. Expiration also lasts about twice as long as inspiration, and breathing rate generally declines over a lifetime.

Small changes can matter. A difference of just 3 to 5 breaths per minute from a patient’s usual rate may signal respiratory distress. A rate above 24 breaths per minute calls for regular observation and close monitoring, especially if other body changes are present. Rates higher than 27 breaths per minute or lower than eight require immediate medical attention.

Respiratory rate can be measured by watching and feeling chest wall movement. Estimating breaths can lead to errors, so direct observation is preferred. An apnea monitor can also help by sensing chest movement and sounding an alarm if movement stops. This is especially useful for infants with possible prolonged apnea in hospitals or at home. Careful ventilation assessment helps detect early respiratory compromise and supports prompt care.

Checking Breathing Patterns and Respiratory Rate

checking-breathing-patterns-and-respiratory-rate

respiration

Respiratory System and Gas Exchange

The respiratory system supports energy production by bringing oxygen into the body and removing carbon dioxide. In human cells, oxidation uses food molecules and oxygen to produce carbon dioxide and water. This process helps sustain life and depends on the respiratory system. Air moves through a pathway that includes the nose, oropharynx, larynx, trachea, bronchi, bronchioles, and lungs. Air enters through the nose and mouth, passes through the pharynx, and then moves through the larynx, which...

physiological control of respiration

How the Brain Regulates Breathing

How the brain regulates breathing is controlled by the respiratory center in the brainstem. This center manages involuntary breathing, so respirations continue without conscious effort and stay smooth and steady. Ventilation is maintained by monitoring carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration, or pH, in arterial blood. CO2 is the most important signal in this control system. When CO2 rises, the respiratory control system increases the rate and depth of breathing so...

respiration and gaseous exchange

How Heart and Lungs Exchange Gases

Heart and lung function work together to move oxygen and carbon dioxide through the body. This gas exchange depends on the cardiovascular system, which includes the heart and blood vessels, and on the respiratory system, which brings air to the alveoli and removes waste gases. The heart is a cone-shaped muscular pump at the center of this system. It has four chambers: two atria on top and two ventricles below. The atria receive blood from veins, including the superior and inferior vena cava...

mechanism of breathing i: inspiration

How Air Moves Into the Lungs

Air enters the lungs through a coordinated breathing process called inspiration, or inhalation. This is the first phase of the respiratory cycle. The respiratory system includes the conducting zone and the respiratory zone, and both help move air toward the place where gas exchange occurs. During inspiration, air comes in through the nose or mouth and passes through the conducting zone. This pathway includes the nasal cavity, trachea, and bronchi. These structures filter, warm, and humidify...

mechanism of breathing ii: expiration

How the Body Pushes Air Out

Expiration is the process of pushing air out of the lungs. It begins when the inspiratory muscles relax. That relaxation starts a chain of changes in the chest and lungs. As the diaphragm relaxes, it moves upward. This lowers the volume of the thoracic cavity, or chest space. The pleural cavity also contracts and presses on the lungs. The intercostal muscles, which sit between the ribs, help during this phase too. They pull the ribs downward and inward. This makes the chest cavity even...

mechanism of breathing iii: the accessory muscles

mechanism-of-breathing-iii-the-accessory-muscles

Accessory Muscles That Support Breathing

Accessory muscles help the respiratory system expand the chest and move air when breathing needs extra effort. The diaphragm is still the main breathing muscle, but other muscles can assist during inhalation and exhalation. This support becomes important during deep breathing or when the body faces breathing challenges. Several accessory muscles help with inhalation. The sternocleidomastoid, which is in the neck, lifts the sternum and helps the chest cavity expand. The scalene muscles also sit...

factors affecting respiration

How Breathing Changes in Different Conditions

Respiration changes with age, activity, health, and the environment. It is the process of exchanging oxygen (O2) and carbon dioxide (CO2) between the body and the surroundings. Many factors can alter how fast and how deeply a person breathes. Newborns usually breathe faster than older children and adults. Their respiratory rate can range from thirty to sixty breaths per minute because their metabolic needs are higher. As people age, metabolic rate often decreases, and breathing tends to slow. <br...

respiratory assessment: purpose and indications

respiratory-assessment-purpose-and-indications

Breathing Checks in Patient Monitoring

Respiratory assessment is a key part of patient monitoring in nursing. It helps detect early signs of clinical deterioration. Breathing changes often appear before other signs of worsening health, so nurses watch respiratory rate, breathing pattern, and breath sounds closely. A complete respiratory assessment goes beyond counting breaths. It includes inspection, which means looking at chest symmetry, effort, and use of accessory muscles. It also includes palpation, or feeling for tenderness,...

assessment of airway, skin color, and use of accessory muscles

assessment-of-airway-skin-color-and-use-of-accessory-muscles

Respiratory Signs to Check During Breathing

Respiratory assessment starts with checking the airway, skin color, and use of accessory muscles during breathing. These signs give quick clues about respiratory status and possible complications. A clear airway, normal skin color, and no accessory muscle use usually point to effective oxygenation and perfusion. Airway assessment is an important first step in any health check. Clinicians look for anything that could block breathing, such as vomit, a foreign object, or the tongue. In a...

assessment of ventilation i: respiratory rate

Ventilation assessment helps monitor a patient’s health status by checking breathing patterns and respiratory rate. Respiration is one of the easiest vital signs to observe. It can also show problems in several body systems, including serious issues such as brainstem injury after head trauma. Accurate assessment depends on unobtrusive observation. The patient should not know they are being watched, because awareness can change breathing patterns. A full evaluation also considers the patient’s...

assessment of ventilation ii: respiratory depth and rhythm

assessment-of-ventilation-ii-respiratory-depth-and-rhythm

Watching Breathing Depth and Rhythm

Breathing depth and rhythm help show how a person is ventilating. Respiratory depth is the amount of air inhaled or exhaled in one breath. It may be shallow or deep, and it usually stays steady when a person is resting or asleep. A deep sigh is an automatic deep breath that fills the lungs with more air than normal breathing. Respiratory depth is checked by watching chest excursion, or chest movement. Deep respiration shows full lung expansion and complete exhalation. Shallow respiration moves...

assessment of diffusion and perfusion

Gas Exchange Checks in Respiratory Care

Gas exchange checks in respiratory care focus on diffusion, perfusion, oxygen saturation, and capnography. These measures help show how well the lungs and blood vessels move oxygen in and remove carbon dioxide from the body. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. In the lungs, oxygen diffuses from the alveoli, the tiny air sacs, into the bloodstream. Carbon dioxide, which is made during cell metabolism, moves from the...

respiratory volumes and capacities i

Breathing Rates and Pattern Changes

Breathing rate and rhythm are important signs of respiratory health. A complete one-minute count helps show the patient’s breathing pattern. Even a small rise of three to five breaths per minute can be an early sign of respiratory distress. Patients with a rate above twenty-four breaths per minute need close monitoring for possible changes in body function. Normal and abnormal respirations have clear names. Eupnea means normal, gentle breathing with a regular rate and rhythm, usually twelve to...

alterations in respiration ii

Breathing Patterns and Their Clinical Meaning

Breathing patterns can be regular, deep, or shallow, and they can also become abnormal. These changes help explain how ventilation is affected in different conditions. Clinically, they are important because they can guide patient evaluation. Biot's breathing is irregular in both rate and depth. It alternates between deep gasping breaths and apnea, which is a pause in breathing. It may occur with increased intracranial pressure or damage to the brain's respiratory center, such as from stroke,...

respiratory volumes

Measuring Lung Air Volumes

Respiratory volumes measure how much air moves in and out of the lungs during breathing. These values help assess lung function, support diagnosis of respiratory conditions, and track overall respiratory health. Each measurement gives a different view of how the lungs work. Tidal volume (TV) is the air inhaled or exhaled in one normal breath. In adults, it is about 500 milliliters per breath. It serves as the baseline volume for resting breathing. Minute volume (MV) is the total air exchanged...

respiratory capacities

Lung Capacity Measures in Breathing

Lung capacity measures show how much air the respiratory system can move and hold during different parts of breathing. These measures help describe lung function in a more complete way. They are useful for understanding how the lungs work during inhaling and exhaling. Inspiratory capacity, or IC, is the maximum amount of air that can be inhaled with full effort. It is found by adding tidal volume and inspiratory reserve volume. IC usually ranges from 2.4 to 3.6 liters. Functional residual...

special considerations while measuring oxygen saturation

special-considerations-while-measuring-oxygen-saturation

Checking Breathing Rate and Oxygen Levels

Checking breathing rate and oxygen levels helps assess how well a patient is breathing. Respiratory rate is the number of breaths taken in one minute. Oxygen saturation shows how much oxygen is being delivered to the body’s tissues. Together, these signs give a fuller picture of respiratory function. The normal adult breathing rate is usually 12 to 20 breaths per minute. A lower rate may suggest respiratory depression or decreased oxygen levels. A rate above 20 breaths per minute may point to...

assessment of respiration

Respiratory Assessment Signs and Findings

Respiratory assessment looks at the signs and findings that show how well a person is breathing. It uses both subjective data and objective data to judge respiratory health. The respiratory system’s basic structures and main functions provide the basis for this check. Subjective assessment starts with an interview. Nurses ask about medical history, medicines, current symptoms, past respiratory problems like asthma or COPD, surgeries, and allergies. Family history also matters because it can...

key terms and concepts

Learn how ventilation assessment uses respiratory rate, depth, and rhythm, plus chest movement and apnea monitors, to spot respiratory distress early.

Checking Breathing Patterns and Respiratory Rate | JoVE K12

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nursing

Checking Breathing Patterns and Respiratory Rate

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