Name: how breathing changes in different conditions
Uploaded: 2024-06-20T13:02:58.000Z
Duration: 1 min 24 s
Channel: JoVE

さまざまな要因が呼吸数、深さ、および動きに影響を与えます。
呼吸数は年齢とともに減少し、新生児では毎分30〜60回の呼吸の範囲であり、これは平均的な成人の呼吸率よりも高くなります。
運動は、体の酸素需要を満たすために呼吸数と呼吸深度を増加させます。
痛みは吸気力を減らし、呼吸数を増やし、呼吸深度を減少させます。
不安は、呼吸の深さと速度を増加させる可能性があります。
慢性的な喫煙は肺の気道を変化させ、喫煙していないときでも呼吸数を増加させます。
体の姿勢は呼吸数に影響します。直立姿勢は胸部を完全に拡張できますが、前かがみの姿勢や横たわっている姿勢は胸部全体の拡張を防ぎます。 
気管支拡張薬や鎮静剤などの薬は、呼吸数と呼吸深度を減少させます。しかし、アンフェタミンとコカインは呼吸数と呼吸深度を増加させる可能性があります。
ヘモグロビン機能は呼吸を変化させます。
たとえば、高地などでヘモグロビンレベルが上昇すると、呼吸数と呼吸深度が増加します。貧血などのヘモグロビンレベルの低下も、呼吸数を増加させます。

呼吸に影響を与える要因

Factors Affecting Respiration

呼吸は、生物とその環境の間で酸素 (O_2) と二酸化炭素 (CO_2) を交換する重要な生理学的機能です。さまざまな要因がこの重要なプロセスに関与している可能性があります。

<ol>
 <li>年齢: 新生児の呼吸数は、より高い代謝ニーズがあるため、1 分間に 30 ～ 60 回の範囲です。一般に、年齢を重ねると代謝率が低下し、その結果、呼吸数が遅くなります。</li>
 <li>運動または身体活動: 身体活動は、酸素需要の増加に対応するために呼吸数と深さを高めます。運動中、体はより多くのエネルギーを必要とし、より多くの酸素の摂取と二酸化炭素の排出が必要になります。</li>
 <li>痛み：痛みにより吸気努力が制限され、深呼吸が不快になる可能性があるため、呼吸数が速くなり、呼吸が浅くなります。</li>
 <li>不安：不安は、知覚された脅威に対する身体の闘争・逃走反応の一環として、多くの場合、速く浅い呼吸や過呼吸を引き起こします。</li>
 <li>慢性喫煙: 長期間の喫煙は肺の気嚢を損傷し、酸素の吸収と二酸化炭素の排出を損ない、多くの場合呼吸数の増加につながります。</li>
 <li>体の姿勢: 直立した姿勢では胸部の拡張とガス交換が最適に行われますが、前かがみまたは横たわった姿勢では肺の拡張が制限され、呼吸数に影響を与える可能性があります。</li>
 <li>薬: 特定の薬は呼吸に影響を与えます。たとえば、気管支拡張薬や鎮静剤は気道の筋肉を弛緩させ不安を軽減することで呼吸数を減らすことができますが、アンフェタミンやコカインなどの興奮剤は中枢神経系を活性化することで呼吸数を増やすことができます。</li>
 <li>酸素濃度: 海面で見られるような高い環境酸素濃度では、通常、規則的な呼吸数が維持されます。対照的に、高地などの低酸素環境では、体が酸素を得るためにより懸命に働く必要があり、呼吸数が増加します。</li>
 <li>二酸化炭素濃度: 血液中の CO_2 レベルの上昇 (高炭酸ガス血症) は、脳の呼吸中枢を刺激して呼吸の速度と深さを増加させ、過剰な CO_2 を排出し、血液の pH レベルを正常に戻します。</li>
 <li>温度: 温度が高くなると代謝率が増加し、酸素要求量と呼吸数が増加します。逆に、温度が低いと代謝プロセスが遅くなり、呼吸数が減少します。</li>
 <li>ヘモグロビン機能: ヘモグロビンレベルは呼吸に大きな影響を与えます。高地では空気中の酸素が少なくなり、体はヘモグロビンレベルを増加させ、呼吸数と深さを上げて酸素の取り込みを高めることで補います。貧血の場合と同様、ヘモグロビンレベルが低下すると、体が酸素輸送能力の低下を補おうとするため、呼吸数が増加する可能性があります。</li>
</ol>

結論
呼吸に影響を与える要因を理解することは、医療専門家にとって呼吸機能を評価および監視する際に不可欠です。これらの要素を認識することで、より正確な診断、患者モニタリングの改善、効果的な治療戦略の開発が可能になります。この知識は、呼吸器の健康を管理し、呼吸器ニーズの個人差に対応するために不可欠です。

呼吸は、生物とその環境との間で酸素(O2)と二酸化炭素(CO2)を交換する重要な生理学的機能です。諸。。。

Education

JoVE Core

Nursing

看護

Unit 1

ユニット1

Vital Signs: Respiration

バイタルサイン：呼吸

KEY TERMS AND CONCEPTS

主要用語および概念

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.

Exercise raises both the rate and depth of breathing. During physical activity, the body needs more energy, so it must take in more oxygen and remove more carbon dioxide. Pain can also change breathing. It may make deep breaths uncomfortable, which can lead to a faster respiratory rate and shallower breaths.

Anxiety often causes rapid, shallow breathing or hyperventilation. This is part of the fight-or-flight response to a perceived threat. Chronic smoking can also affect respiration. Long-term smoking damages the air sacs in the lungs, which reduces oxygen absorption and carbon dioxide removal and often leads to a higher respiratory rate.

Body position matters as well. An erect posture allows the chest to expand more easily, while a stooped or reclined posture can limit lung expansion. Medications can shift breathing in different ways. Bronchodilators and sedatives may decrease the respiratory rate, while stimulants such as amphetamines and cocaine can increase it by acting on the central nervous system.

The amount of oxygen and carbon dioxide in the body and environment also changes respiration. Low oxygen levels, such as at high altitudes, make the body work harder to get enough oxygen and can increase the respiratory rate. High carbon dioxide levels in the blood, called hypercapnia, stimulate the brain’s respiratory center to increase breathing so extra CO2 can be removed and blood pH can return to normal.

Temperature and hemoglobin also play a role. Higher temperatures raise metabolic rate, which increases oxygen demand and respiratory rate, while lower temperatures slow metabolism and reduce breathing. Hemoglobin carries oxygen in the blood. At high altitudes, the body may increase hemoglobin levels to help with oxygen uptake. In anemia, lower hemoglobin levels can lead to a faster respiratory rate as the body tries to compensate for reduced oxygen transport.

How Breathing Changes in Different Conditions

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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

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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

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

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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

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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

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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...

assessment of ventilation ii: respiratory depth and rhythm

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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 age, exercise, pain, anxiety, smoking, posture, medications, oxygen, carbon dioxide, temperature, and hemoglobin affect breathing rate and depth.

How Breathing Changes in Different Conditions | JoVE K12

JoVE Core 看護は、医療システム、看護組織、健康概念をカバーする、看護実践に関する簡潔なアニメーション レッスンを提供します。実践的なコミュニケーション、感染予防、看護の基礎が含まれており、学生に看護の原則を明確に理解させます。

nursing

How Breathing Changes in Different Conditions

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