Physioex 8.0 Respiratory Lab Essay

1. Explain the change in ERV with exercise. the ERV decrease with exercise asssuming that the volume of air was exhaled more than being enhaled at the time. 2. Explain the change in IRV with exercise. IRV decreased as well because the amount of air that was supposed to be inhale was very little inhalation during the time of exercising. 3. Explain the change in IC with exercise. IC increase with exercise beacause the subjects were able to allow their lungs to breath. 4. Explain the change in FRC with exercise. The FRC decrease just a little with exercise. 5. Explain why RV does not change with exercise. the ERV decrease with exercise asssuming that the volume of air was exhaled more than being enhaled at the time. 6. Explain why VC does not change with exercise. the vital capacity remain the same because it accumulated the tidal

Oxygen is drawn into the lungs by a process called inhalation, (breathing in), which occurs when the diaphragm and intercostal muscles are contracted which causes the lungs to expand, giving a larger volume and therefore causing a lower pressure differential between the lungs, alveolar pressure, and the outside atmosphere. This inverse relationship between volume and pressure is called Boyle’s law. (Tortora & Derrickson, 2011)

Once the limits have been reached, there is very little or no change that will occur in the response to any pressure change. This is figured out by using the equation of change in pressure and the change in volume. (Jardins, 2013) By using this equation it will help figure out how compliant the lungs are. This is critical in figuring lung dysfunctions and developing care for a patient. One of the major diseases that lowers the elastance of the lung and the most preventable is Chronic obstructive pulmonary disease (COPD). COPD is categorized with an increase of airway resistance and the loss of lung elasticity. As a restriction in airflow develops, it leads to the hyperinflation of the alveoli. Some other diseases that are caused by low elastic conditions and is related to Hooke’s law are traumatic chest injuries, pneumonia, pneumothorax, pleural effusion, acute respiratory distress syndrome, pulmonary edema, and interstitial lung disease. All of the disease and/or illness’s cause the pressure-volume curve to slide to the right very quickly and allows the lung elastic properties to decrease significantly. (Jardins, 2013)

The bronchial tubes increase in length and diameter during inhalation. Bronchial tubes decrease in length and diameter during exhalation. Poiseuille’s law can be applied to the lungs when the bronchial tubes become constricted due to an increase in mucus production and can decrease in size. When the bronchial tubes decrease in size and the patient is breathing, it is going to take more pressure to move the air into the swelled bronchi. If the radius of a patient’s bronchial tubes increased by sixteen percent, the pressure to move oxygen into the lungs would double. Therefore, a patient with bronchial smooth muscle constriction of sixteen percent would have to double their driving pressure to keep a constant flow rate. If swelling occurs and the patient does not increase their pressure, the amount of oxygen they are getting to their lungs will decrease. Respiratory therapists can see this taking place in patients with asthma that have excess mucus secretions.

Both rapid, shallow breathing patterns and hypoventilation effect gas exchange. Arterial blood gases will be monitored and changes discussed with provider. Alteration in PaCO2 and PaO2 levels are signs of respiratory failure. Patient’s body position will be properly aligned for optimum respiratory excursion, this promotes lung expansion and improved air exchange. Patient will be suctioned as needed to clear secretions and maintain patent airways. The expected outcome is that the patient’s airway and gas exchange will be maintained as evidence by normal arterial blood gases (Herdman,

The presence of fluid in the alveolar space could potentially cause the lung capacity to be effected as well.

Air escaped from the lung into the pleural space. Eventually, enough air collected in the pleural space to cause the mediastinum to shift twoard the right. The collapsed left lung, increased intrapleural pressure, and rightward shift make it difficult to ventilate A.W.

Due to the mechanical ventilator, it is able to assist in oxygen perfusion to all of her tissue. Thus, the lungs will be able to expand appropriately.

Before the exercise the breathing decreased when I was counting how many breaths I can take in a minute. However whilst breathing, my breathing rate was not normal but it was essential for me to keep the results reliable.

I would tell the doctor to stop if he didn’t start and grab a manual ventilator and try to find a replacement mechanical ventilator.

The chest tube will not have any more drainage coming from it for fluids and when the lung is re-expanded in the case of a collapsed lung via

Biphasic cuirass ventilation is a method of external ventilation that is considered to be a modern improvement of the iron lung. With this type of negative pressure ventilation it is possible for the patient to acquire a large amount of tidal volume as well as a high respiratory rate. Most of the more common methods of ventilation are determined by the elastic recoil of the chest which, in return, restricts the respiratory rate. Complications, such as infections, that are usually associated with the invasive method of ventilation can be avoided when using this non-invasive ventilation technique. Instead of participating with one or the other, biphasic cuirass ventilation has the capability to utilize both phases of respiration, the expiratory and inspiratory phases.

The human body comprises of two respiratory sponges called lungs. The left lung is slightly smaller than the right as it makes room for placement of the heart. Due to this slightly smaller size, it only contains two lobes whereas the right lung has 3 lobes. Both lungs are host to the network of air sacs or alveoli which transport the air from the outside environment to the external and internal respiration processes.

As air sacs are destroyed, the lungs are able to transfer less and less oxygen to the bloodstream, causing shortness of breath. The lungs also lose their elasticity, which is important to keep airways open. The patient experiences great difficulty exhaling. Emphysema doesn't develop suddenly, it comes on very gradually.

more specific tests in a pulmonary function lab to see what exactly the problem is.