Table of Contents
What is an effect of excessive ventilation?
What happens with excessive breathing is that it increases intrathoracic pressure, which reduces coronary perfusion because blood can’t flow back into the heart. “It reduces venous blood return to the heart, and reduced blood return means reduced blood outflow from the heart,” says Aufderheide.
Which of the following is the primary treatment in management of ventricular fibrillation?
External electrical defibrillation remains the most successful treatment for ventricular fibrillation (VF).
Do you give adrenaline in asystole?
Start cardiopulmonary resuscitation (CPR) with a 30:2 ratio of compressions to rescue breaths for people with pulseless electrical activity (PEA) or asystole. Give adrenaline 1 mg intravenously (IV) as soon as venous access is achieved.
Do you give amiodarone for asystole?
Amiodarone serum level was within therapeutic range. The possible electrophysiologic mechanisms by which amiodarone might suppress both normal and abnormal pacemakers are discussed. The occurrence of asystole at therapeutic serum concentration of amiodarone suggests that this drug should be used with caution.
When should you ventilate a patient?
Patients who are breathing at an excessively high rate (greater than 30) should receive assisted ventilations to bring their rate down to 10-12 times per minute. Some patients in respiratory failure may have a severely altered mental state and no longer have a gag reflex.
What is the maximum amount of time you should check for a pulse?
The American Heart Association recommends that pulse checks last a maximum of 10 seconds and that the ratio of time spent performing compressions to the total duration of CPR be 80% or higher, as these correlate with increased ROSC and survival to hospital discharge.
What is the most common cause of ventricular fibrillation?
Ventricular fibrillation is most commonly caused by the following:
- Heart disease.
- Heart attack or chest pain (angina).
- Diseases that change the structure of the heart by making its walls thicker or weaker.
- Other arrhythmias or arrhythmia-causing conditions.
- Heart surgery.
- Certain medications.
What is the use of LMA in surgery?
LMA is used as an alternative to intubation where difficult intubation is anticipated. LMA is also useful for securing airway in emergency where intubation and mask ventilation is not possible. Laryngeal Mask Airway is used as an elective method for minor surgeries where anesthetist wants to avoid intubation.
How do you induce general anesthesia for a tracheostomy?
General anesthesia was induced with intravenous propofol and fentanyl. A cuffed TT (internal diameter 7.0-8.5 mm) was placed using direct laryngoscopy and orotracheal intubation or a correctly sized LMA (no. 3-5) was inserted for airway securing.
What is the role of LMA in intubation?
LMA is used as an alternative to intubation where difficult intubation is anticipated. LMA is also useful for securing airway in emergency where intubation and mask ventilation is not possible.
Is LMA safe for endovascular coil embolization of upper airway?
They concluded that the use of LMA is the optimal method for securing the patency of the upper airways during anesthesia for endovascular ICA repair. 9 The 3rd study, Tan et al 10 reported no complications related to the use of LMA for GA in endovascular coil embolization.