Increased Total Lung Capacity: Causes & Reasons

Possible Causes for Increased Total Lung Capacity

Other test abnormalities may include Increased total lung capacity Increased functional residual capacity Increased residual volume Decreased vital capacity Decreased single-breath [msdmanuals.com]

Hyperinflation, or air trapping caused by expiratory flow limitation, causes operational lung volumes to increase and even approach the total lung capacity (TLC) during exercise [ncbi.nlm.nih.gov]

[…] diffusing capacity for carbon monoxide (DLCO) Findings of increased total lung capacity, functional residual capacity, and residual volume can help distinguish COPD from [msdmanuals.com]

Bronchial Asthma

[…] breathing occurs near predicted total lung capacity. [ncbi.nlm.nih.gov]

Dynamic hyperinflation In asthmatic crisis, remarkably high volumes of functional residual capacity (FRC), total lung capacity and residual volume can be observed, and tidal [ncbi.nlm.nih.gov]

The increase in lung volume tends to increase airway caliber and consequently reduce the resistive work of breathing. [ncbi.nlm.nih.gov]

Diffuse Pulmonary Lymphangiomatosis

[…] airways, emphysema, pulmonary fibrosis, decreased total lung capacity, and increased incidences of lung cancer, pulmonary infections, and tuberculosis. [science.gov]

The total vascular resistance is lowest at functional residual capacity (FRC) and is higher at low lung volume (residual volume [RV]) and high lung volume (total lung capacity [what-when-how.com]

Chronic pulmonary problems include decreases in lung function, bronchitis with hyper-reactive airways, bronchiolitis, bronchiectasis, stenosis of the trachea and other large [science.gov]

Acute Viral Bronchiolitis

Hyperinflation may occur, and hence Total lung capacity (TLC) may be increased. [ncbi.nlm.nih.gov]

Forced expiratory volume in one second (FEV1) will be reduced and the ratio of FEV1 to Forced vital capacity (FEV1/FVC) is also reduced. [ncbi.nlm.nih.gov]

Restrictive Lung Disease

Total lung capacity (TLC) : Total lung capacity (TLC) is calculated by adding the volume of air left in the lungs after exhalation (the residual volume) with the FVC. [copd.about.com]

Unlike obstructive lung diseases, such as asthma and chronic obstructive pulmonary disease (COPD), which show a normal or increased total lung capacity (TLC), restrictive [emedicine.com]

[…] in one second (FEV1) Decreased Decreased or normal FEV1/FVC ratio Decreased Normal or increased Total lung capacity (TLC) Normal or increased Decreased Laboratory Tests Lab [copd.about.com]

Pulmonary Bullous Emphysema

There will be an increase in total lung capacity, residual volume, and functional residual capacity, as well as a decrease in vital capacity. [ncbi.nlm.nih.gov]

Forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) ratios will typically be <0.7. FVC decreases because of loss of elastic recoil of the lung. [ncbi.nlm.nih.gov]

Lymphangioleiomyomatosis

There was a trend toward increased total lung capacity (114 +/- 7% expressed as mean of percentage predicted +/- SEM) and increased residual volume (207 +/- 24%). [ncbi.nlm.nih.gov]

There was a trend toward increased total lung capacity (114 ± 7% expressed as mean of percentage predicted ± SEM) and increased residual volume (207 ± 24%). [doi.org]

Pulmonary functions •Lymphangioleiomyomatosis patients are often hyperinflated with an increased total lung capacity (TLC) and increased thoracic gas volume (Vtg). [slideshare.net]

Decreased Diffusion Capacity of the Lung

RESULTS: Increased standard deviation of lung density and decreased kurtosis and skewness of lung density histograms were all associated with decreased total lung capacity [ncbi.nlm.nih.gov]

[…] can typically be measured directly as a significant increase in the diffusing capacity of the lung. [pathwaymedicine.org]

We hypothesized that comparison of DLCO/VA with its predicted value at predicted total lung capacity (TLC) will result in an underestimation of the diffusion disorder in patients [repub.eur.nl]

Pulmonary Lymphangioleiomyomatosis

There was a trend toward increased total lung capacity (114 +/- 7% expressed as mean of percentage predicted +/- SEM) and increased residual volume (207 +/- 24%). [ncbi.nlm.nih.gov]

There was a trend toward increased total lung capacity (114 ± 7% expressed as mean of percentage predicted ± SEM) and increased residual volume (207 ± 24%). [doi.org]

An increase in the percentage of predicted total lung capacity (%TLC) correlated with a poor prognosis at 2, 3, and 5 yr after the first examination, with statistically significant [ncbi.nlm.nih.gov]

Decreased Lung Compliance

Unlike obstructive lung diseases, such as asthma and chronic obstructive pulmonary disease (COPD), which show a normal or increased total lung capacity (TLC), restrictive [emedicine.medscape.com]

There is the release of lung surfactant [11] when lungs have been stretched near to total lung capacity and prostaglandins into alveolar spaces, [12] which increase lung compliance [medical-dictionary.thefreedictionary.com]

But it's going to have the same effect of preventing a large increase in volume and reducing total lung capacity. [coursera.org]

Panacinar Emphysema

< 30% normal or decreased FVC increased total lung capacity (TLC) more than with chronic bronchitis decreased DLCO (vs. normal in chronic bronchitis) DLCO = diffusing capacity [step2.medbullets.com]

The quotient between residual lung volume (RV) and total lung capacity (TLC) is subject to an increase from 25% in healthy subjects to nearly 80% in patients with severe emphysema [atm.amegroups.com]

[…] decreased % FEV1 used to categorize severity based on Global initiative for chronic Obstructive Lung Disease (GOLD) mild: > 80% moderate: 50-79% severe: 30-49% very severe [step2.medbullets.com]

Obstruction of the Lung

[…] of air left in the lungs following full expiration, is often increased in COPD, as is the total lung capacity, while the vital capacity remains relatively normal. [en.wikipedia.org]

Normal aging results in an increase in functional reserve capacity (FRC) and residual volume (RV) and a normal total lung capacity (TLC) percentage. [emedicine.medscape.com]

Any breakdown in the ability of pump to function will result in a smaller total lung capacity (restrictive lung disease). Neuromuscular disease is an example of this. [courses.washington.edu]

Hereditary Calcification of Joints and Arteries

decreased total lung capacity and functional residual capacity, type 2 diabetes mellitus (i.e., hyperinsulinemia and insulin resistance), osteoarthritis, hyperuricemia, [quizlet.com]

Correct answers: a, c, d Rationale: Health risks associated with obesity include cardiovascular disease (related to increased low-density lipoprotein levels, increased triglyceride [quizlet.com]

[…] levels, and decreased high-density lipoprotein levels), hypertension, sleep apnea, obesity hypoventilation syndrome, reduced chest wall compliance, increased work of breathing [quizlet.com]

Tracheobronchomegaly

Lung function exploration may show an obstructive ventilatory disorder with increased total lung capacity and residual volume [27]. [ncbi.nlm.nih.gov]

Pulmonary function tests commonly show increased dead space, total lung capacity, residual volume, and obstructive physiology related to large airway collapse. [cureus.com]

Bronchiectasis with or without Elevated Sweat Chloride 3

Normal of Decreased Fuctional Risidual Capacity - Increased Total Lung Capacity - Normal or Increased RV/TLC Ratio - Normal or Increased Term PFT Test Findings in Moderate [flashcardmachine.com]

decreased Inspiratory Capacity - decreased Functional Risidual Capacity - decreased Total Lung Capacity - decreased RV/TLC ratio - normal Term ABG Mild to Moderate Stage [flashcardmachine.com]

Inspiratory Reserve Volume - Normal or Decreased Expiratory Reserve Volume - Normal or Decreased Risidual Volume - Increased Vital Capacity - Decreased Inspiratory Capacity [flashcardmachine.com]

Spondylometaepiphyseal Dysplasia - Short Limb - Abnormal Calcification

Restrictive ventilatory defect MedGen UID: 478856 •Concept ID: C3277226 • Finding A functional defect characterized by reduced total lung capacity (TLC) not associated with [ncbi.nlm.nih.gov]

Recurrent pneumonia MedGen UID: 195802 •Concept ID: C0694550 • Disease or Syndrome An increased susceptibility to pneumonia as manifested by a history of recurrent episodes [ncbi.nlm.nih.gov]

Mediastinal Emphysema

[…] by 1,040 ml (over his total lung capacity); at the same time, his transpulmonary pressures increased up to 4.1 kPa. [ncbi.nlm.nih.gov]

However, forceful contraction of expiratory muscles limit the expansion of lungs to their total lung capacity by splinting the chest wall and prevents volutrauma that may [mjdrdypu.org]

Here we report a pneumomediastinum found on chest CT scan in a diver during a physiological study, when glossopharyngeal insufflation increased the volume of gas in the lungs [ncbi.nlm.nih.gov]

Pulmonary Emphysema

[…] tissue loss and increase in total lung capacity (TLC) on these indexes. [ncbi.nlm.nih.gov]

Total lung capacity was not significantly increased, but this may be a consequence of preagonal edema. [ncbi.nlm.nih.gov]

When a person is breathing normally, they typically use between 10 to 15 per cent of his or her total lung capacity. [youtube.com]

Obstructive Atelectasis

total lung capacity, functional residual capacity, and residual volume. [aafp.org]

[…] percent of predicted value or FEV 1 less than 50 percent of predicted value plus severe chronic symptoms Beyond office spirometry, complete pulmonary function testing may show increased [aafp.org]

Cervical Spinal Cord Injury

Glossopharyngeal insufflation/breathing increases total lung capacity and improves cough function, however, knowledge of the experiences regarding learning and practicing [ncbi.nlm.nih.gov]

Chest Wall Disorder

Flattened thoracic cage and increased ratio of reserve volume/total lung capacity (RV/TLC) are distinctive characteristics seen in patients with PPFE, but not seen in those [omicsonline.org]

Any breakdown in the ability of pump to function will result in a smaller total lung capacity (restrictive lung disease). Neuromuscular disease is an example of this. [courses.washington.edu]

The respiratory midposition volume is maintained at near-normal levels, whereas total lung capacity decreases (because of inspiratory muscle weakness) and residual volume [what-when-how.com]

Infectious Lung Disease

Obstructive disease is characterized by reduced expiratory flow rates and increased total lung capacity. [medical-dictionary.thefreedictionary.com]

Characteristics of restrictive respiratory disease are decreased forced expired vital capacity and total lung capacity, with increased work of breathing and inefficient exchange [medical-dictionary.thefreedictionary.com]

[…] disease is caused by conditions that limit lung expansion, such as fibrothorax, obesity, a neuromuscular disorder, kyphosis, scoliosis, spondylitis, or surgical removal of lung [medical-dictionary.thefreedictionary.com]

Obstructive Lung Disease

In addition, diffusion capacity was slightly decreased in spite of enlarged total lung capacity and increased residual volumes. [ncbi.nlm.nih.gov]

Obstructive lung disease in two patients with Behcet's syndrome is presented. In both cases increased airways resistance, impaired PEF and FEV1.0 were found. [ncbi.nlm.nih.gov]

Primary Ciliary Dyskinesia 13

increased residual volume (RV), and increased ratio of residual volume to total lung capacity (RV/TLC). [slideshare.net]

Typical findings include decreased flow rates (forced expiratory flow between 25% and 75% of vital capacity [FEF25%–75%] and forced expiratory volume in 1 second [FEV1]), [slideshare.net]

Cystic Lung Disease

The lungs are usually hyperinflated with an increase in the total lung capacity (TLC) and thoracic gas volume. [merckmanuals.com]

Gas trapping (an increase in residual volume [RV] and RV/TLC ratio) is commonly present. [merckmanuals.com]

Airway Obstruction

[…] of air left in the lungs following full expiration, is often increased in COPD, as is the total lung capacity, while the vital capacity remains relatively normal. [en.wikipedia.org]

The increased total lung capacity (hyperinflation) can result in the clinical feature of a "barrel chest" - a chest with a large front-to-back diameter that occurs in some [en.wikipedia.org]

COPD is defined as a forced expiratory volume in 1 second divided by the forced vital capacity (FEV1/FVC) that is less than 0.7 (or 70%). [6] The residual volume, the volume [en.wikipedia.org]

Bronchitis

When a person is breathing normally, they typically use between 10 to 15 per cent of his or her total lung capacity. [youtube.com]

[…] diffusing capacity for carbon monoxide (DL co ) Findings of increased total lung capacity, functional residual capacity, and residual volume can help distinguish COPD from [msdmanuals.com]

Necrotizing Alveolitis

AIRFLOW) Increase in resistance to airflow due to obstruction at any level (Reduced lung VOLUME) Reduced expansion of lung parenchyma Total lung capacity (TLC) Normal / Increased [slideshare.net]

[…] one of the “chronic interstitial lung diseases” that show “restrictive pulmonary functions” Obstructive airway disease Restrictive airway disease General features (Reduced lung [slideshare.net]

Acute Bronchitis

Additional pulmonary function testing is necessary only in specific circumstances, such as before lung volume reduction surgery. [msdmanuals.com]

Congenital Pulmonary Hypoplasia

The measurement of static lung volumes revealed increased residual volume (200% predicted) and total lung capacity (127% predicted). [rc.rcjournal.com]