Ventilator low pressure alarm causes

Problem 1: Ventilator high and low pressure alarm causes and processing Alarm cause: the detected pressure is less than the lower limit of the set pressure alarm.

Treatment:

1, check whether the pipeline is off or leakage.

2. The lower limit of airway pressure is set too high.

Common causes of ventilator alarms are ventilation, pressure, power, oxygen concentration and choking alarms. The steps for their treatment are roughly the same.

Ventilation volume alarm:

1) The patient reason triggered the low limit of ventilation alarm: ① The patient's poor ability to breathe on his own, in the use of IMV, SIMV, PSV, CPAP and other modes, due to the patient's respiratory frequency is slow, arrhythmia, tidal volume is small and other reasons, which causes the patient's respiration is not enough, so that the ventilation per minute is reduced and triggered the alarm. At this time, the number of times or pressure or tidal volume of controlled ventilation should be increased appropriately on the basis of the original mode of ventilation, and some patients, such as spontaneous breathing is too weak, should be changed to controlled ventilation. ② The patient's airway is not smooth , especially when the performance of fixed-pressure ventilation is obvious. Should be timely relief of obstruction, suction secretions: such as viscous sputum blockage, should be given adequate wetting, regular back suction to ensure that the airway is open; such as tracheal spasm, can be changed from fixed-pressure to fixed-volume, and give active medication to relieve the spasm of the trachea, but also in the original fixed-volume based on the increase in the appropriate pressure of the ventilation in order to ensure that adequate ventilation.

(2) Ventilator or catheterization facilities to trigger the low limit of ventilation alarm:

(1) given less ventilation: such as the setting of the TV is small or pressure is insufficient or the frequency is slow; in the fixed-pressure time continuous flow of the ventilator in the air flow is small, short respiratory time and so on can lead to less ventilation per minute (mv), and triggered the alarm. Should re-verify the conditions of ventilation, increase TV, pressure or frequency, flow or inspiration time, etc..

② low-limit alarm device is too high, inaccurate ventilation meter display: this time the patient is well ventilated, there is no insufficient ventilation performance. The alarm limit should be reset or the MV should be recalibrated with a tidal volume meter.

③ The dead space is too large: in the absence of changes in mechanical ventilation conditions, additional ventilator tubing, or too little fluid in the humidification bottle, etc.

Question 2: Examples of common causes of high-pressure alarm and low-pressure alarm during ventilator Common causes of ventilator alarms are ventilation, pressure, power, oxygen concentration, and suffocation alarms. The steps for their treatment are generally the same. ⒈ Ventilation Alarm: (1) patient reasons triggered the ventilation low limit alarm: ① the patient's poor ability to breathe on their own, in the use of IMV, SIMV, PSV, CPAP and other modalities, due to the patient's slow respiratory rate, rhythmic irregularities, small tidal volume and other reasons, resulting in the patient's respiratory insufficiency, so that the amount of ventilation per minute is reduced and the alarm is triggered. At this time, the number of times or pressure or tidal volume of controlled ventilation should be increased appropriately on the basis of the original mode of ventilation, and some patients, such as spontaneous breathing is too weak, should be changed to controlled ventilation. ② The patient's airway is not smooth , especially when the performance of fixed-pressure ventilation is obvious. Should promptly release the obstruction, suction out secretions: such as viscous sputum blockage, should be given adequate wetting, regular back row sputum suction, in order to ensure that the airway is open; such as tracheal spasm caused by the fixed-pressure can be changed to fixed-volume, and give active drug therapy to relieve the spasm of the trachea, but also in the original fixed-volume based on the increase in the appropriate pressure of ventilation, in order to ensure that adequate ventilation. (2) Ventilator or catheterization facility triggers the low limit of ventilation alarm: (1) Less ventilation is given: if the set TV is small or the pressure is insufficient or the frequency is slow; in the ventilator with fixed time and time pressure continuous airflow the airflow is small and the breathing time is short, etc. can lead to less ventilation per minute (mv), and the alarm is triggered. Should re-verify the conditions of ventilation, increase the TV, pressure or frequency, flow or inspiration time. ② The low limit alarm device is too high, and the ventilation meter display is inaccurate: at this time, the patient is well ventilated, with no manifestation of inadequate ventilation. The alarm limit should be reset, or the MV should be recalibrated with a tidal volume meter. ③ The dead space is too large: additional ventilator tubing is added in the absence of a change in the mechanical ventilation conditions, or the fluid in the humidification bottle is too small. Additional dead space should be minimized by removing excessively long tracheal tubes outside the nasal cavity (2~3cm should be retained for small infants), using the fixed tubes in the ventilator itself, removing the extension tubes, and frequently checking the fluid level in the humidification bottle. ④Air leakage: Including air leakage occurring from too thin tracheal tubes or cannulae, loosening between the connecting tubes of the ventilator, rupture of the connecting tubes, poor closure of the humidification bottle, and air leakage inside the ventilator. The tubes should be connected tightly, and the tubes should be replaced when there is rupture or not tight; if the cannula or trocar is a little thin and leaks from the cannula, the tidal volume and suction pressure can be increased appropriately; if it is too thin, the cannula or trocar should be replaced; even if there is a little leakage, the tubes should be replaced in the case of applying CPAP or PEEP. ⑤Detubation: it is a common and serious complication of mechanical ventilation, and can be divided into three kinds according to the location of detubation: one is displaced in the hypopharynx: the sound of air leakage can be heard when delivering air, and the location of detubation can be seen directly by laryngoscope. The other is located in the esophagus: its symptoms are abdominal distension, stomach hear breath sounds, in the exhalation of the intubation tube no aerosol formation. The third is prolapse outside the oral cavity. Dislodgement has been established and immediate re-tracheal intubation is indicated. In addition, low pressure of the air source and insufficient mechanical working pressure can cause a low ventilation alarm. The air source should be replaced and the working pressure adjusted. (3) The patient triggers the ventilation high limit alarm: it is mostly seen in patients with strong voluntary breathing, when using IMV, PSV, SIMV, CPAP, etc., due to the increase of the frequency of voluntary respiration, the depth of respiration increases, so that the patient's voluntary ventilation increases, and the ventilation alarm is triggered, such as hyperthermia, pain, irritability or other *** when the patient can breathe faster. At this time, the main symptomatic treatment, such as the necessary cooling, pain relief, sedation, etc.. (4) Ventilator settings are not appropriate, triggering the high limit alarm: ① The upper limit of the ventilation alarm is set too low; at this time, the patient is not uncomfortable, and the upper limit of the alarm should be set again. ② TV or MV setting is too large, ventilation conditions should be re-verified. ③The trigger sensitivity is not set properly, and should be reset. ④ Transient alarm when using Sigh may not need to be dealt with. ⑤ The MV measurement meter shows an error, in this case, the ventilation meter should be used for correction. PEAK PRESSURE ALARM: ⑴ Patient's reason triggers pressure high limit alarm: ① Patient's cough, pain, hypoxia, secretion obstruction or inhalation gas temperature is too high and so on *** Causes discomfort, agitation and restlessness when autonomous respiration fights with mechanical respiration, which can stimulate high pressure alarm. These cases should be treated, sedation, if necessary, the use of muscle relaxants, "interrupt" the patient's spontaneous breathing. ② Complications in the lungs: When there are complications such as pneumothorax, pulmonary atelectasis, exacerbation of inflammation in the lungs, pulmonary edema and bronchospasm, etc., the compliance of the lungs decreases, the resistance of the airway increases, and the pressure alarm may occur when volume control ventilation is performed. The first two are related to ventilator use and adjustment, endotracheal intubation, etc., and are the more serious and common complications. x-ray available at ...... >>

Question 3: What are the common causes of ventilator high pressure alarms? The common causes of ventilator high pressure alarm are:

(1), tracheobronchial spasm, stenosis.

(2), mucus retention in the airway.

(3), artificial airway obstruction.

(4) Increased muscle tone, *** cough, or new comorbidities in the lungs, such as pneumonia, pulmonary edema, pulmonary atelectasis, and tension pneumothorax.

(5) The alarm limit of the airway pressure high limit alarm is set too low.

In modern clinical medicine, the ventilator as an effective means to artificially replace the function of autonomous ventilation, has been widely used in various causes of respiratory failure, anesthesia during major surgery respiratory management, respiratory support therapy and emergency resuscitation, in the field of modern medicine occupies a very important position. The ventilator is a medical device that can play a crucial role in preventing and treating respiratory failure, reducing complications, and saving and prolonging patients' lives.

Question 4: Treatment of ventilator low-pressure alarms 1 Airway high-pressure alarms Airway high-pressure alarms are most common. The ventilator airway pressure high limit alarm is triggered when various causes increase airway pressure above the upper limit of the set pressure alarm. 1.1 Excessive secretions or obstruction in the airway: This occurs mainly due to the following reasons: ① Inadequate or untimely suctioning, resulting in excessive secretions in the airway, which interferes with ventilation and increases airway resistance, triggering the alarm. ② insufficient airway humidification, resulting in dry tracheal mucosa, secretion crusts, blocking the airway, airway pressure rises sharply, causing alarm. Treatment: If the secretion is excessive, in addition to active and effective anti-infection, but also to strengthen the number of sputum suction, so that the airway is always open, while paying attention to aseptic operation, to reduce the chance of lung infection and pulmonary atelectasis. If the airway is obstructed by sticky sputum, effective suction techniques should be used immediately to remove the sputum. Fiberoptic bronchoscope can be used to aspirate sputum if necessary. If the sputum is viscous and not easy to be sucked out, gentamicin 80 kU plus chymotrypsin 5 mg plus saline 100 ml can be used to carry out continuous or intermittent wetting of the airway; nebulized inhalation device can also be installed on the respiratory access in order to achieve the effect of sputum dilution. 1.2 Respiratory pathway problems: pipe folding, pressure, water accumulation, etc., can also lead to ventilator airway high pressure alarm. Treatment: Immediately exclude the cause of pipe folding and pressure, remove the water in the pipe, and check frequently. Man-machine confrontation: the reason for the occurrence of man-machine confrontation is mainly the patient's postoperative pain ***, due to the trauma of standing surgery and postoperative drainage tubes ***, when moving the patient *** pain receptors, through nerve conduction caused by the incision pain reaction, the patient suffocated to man-machine respiratory asynchrony, triggering the alarm. Treatment: Pain relief and sedation should be given in a timely manner as prescribed by the doctor, and at the same time, the psychological care of the patient should be done well, explaining to the patient the importance of mechanical ventilation, enhancing his confidence in the treatment of the disease, and obtaining the patient's cooperation, in addition to minimizing the adverse factors *** . 2 Airway low-pressure alarm The ventilator low-pressure alarm device is a protective measure to detect patient deconditioning, and the most likely cause of the alarm is patient deconditioning. The patient typically presents with shortness of breath, cyanosis, and a leak in the throat or the sound of the patient being heard talking. For patients with tracheotomy, bubbles of secretion around the tracheotomy opening can be seen. Treatment: ① Check the inflation of the tracheal catheter balloon, re-inflate if necessary, and replace the tracheal catheter immediately if the balloon is ruptured. ② carefully check the ventilator pipeline, replace the ruptured pipe and tighten the joints, especially check the easily overlooked joints, water collection bottles and so on. ③ If the patient has shortness of breath, cyanosis and other symptoms of hypoxia, immediately use a simple respirator for artificial respiration.

Question 5: The causes and treatment of ventilator low-pressure alarm Firstly, check whether the low-pressure alarm valve you set is correct;

Secondly, check whether the pipeline is falling off or there is a leakage;

Question 6: What are the common causes of ventilator humidifier alarm? High-pressure alarm: Generally, it suggests that the airway resistance is increased, the lungs are less compliant, and the artificial airway or pipeline is not smooth.

Oxygen alarm: set the high and low pressure alarm ranges, if there is a problem then the ventilator alarm.

Question 7: What are the causes of the ventilator high pressure alarm and low pressure alarm and the measures to deal with them? Ventilator high pressure alarm causes: 1. More than you set the high pressure Ohio alarm, that is to say, may be set too low. 2. Circuit obstruction such as choking.

Reasons for low-pressure alarm: 1 low-pressure alarm set too high. 2. circuit disconnection. 3. too much air leakage

Treatment measures should not be said

Question 8: Ventilator low-pressure alarm letters indicate - () High-pressure alarm letters indicate - () What is going on ah, do not worry about it, let me tell you, the high pressure alarm of the ventilator will be in what situation? The first thing you need to do is to get a good deal on the price of the product. What can I do about it? Ventilator high pressure alarm will be in the following cases: 1. The patient coughing, pain, lack of oxygen, secretion obstruction or inhalation gas temperature is too high *** caused by discomfort, restlessness, autonomy and mechanical respiratory confrontation, can be stimulated by high pressure.

Question 9: dysplasia, what to supplement? You can go to the hospital to see

Question 10: The alarm settings of the ventilator 5 points Different ventilators different causes and treatment too.

I don't know what brand of ventilator you are using.