precordial การใช้

• The precordial thump is a manoeuver promoted as a mechanical alternative to defibrillation.
• The sign is often best visualized in lead II and lateral precordial leads.
• Leads are broken down into three sets : limb, augmented limb, and precordial.
• In addition, any two precordial leads next to one another are considered to be contiguous.
• Rarely, a cardiac bulge with a pace different from the pulse rhythm can be felt on precordial examination.
• It has been described as a series of precordial crackles that correlate with the heart beat and not the respirations.
• Precordial impulses are visible or palpable pulsations of the chest wall, which originate on the heart or the great vessels.
• The use of the precordial thump technique has sometimes been shown in movies and television, usually in passing without any explanation.
• In a normal adult, the energy range involved in the precordial thump is five to 10 times below that associated with commotio cordis.
• While the patient went into ventricular fibrillation, the dangerous arrhythmia was terminated by Dr . Sones promptly performing a precordial thump which restored sinus rhythm.
• A "'parasternal heave "'is a precordial impulse that may be felt ( palpated ) in patients with cardiac or respiratory disease.
• And he gave a severe lecture to one man who had given another a  precordial thump in the rib cage "  after  learning CPR from watching television.
• For the precordial leads, they are " unipolar " and compared to a common lead ( commonly the " Wilson's central terminal " ) and is described below.
• Looking at the precordial leads, the r wave usually progresses from showing a rS-type complex in V 1 with an increasing R and a decreasing S wave when moving towards the left side.
• Researchers have found shortened echoic memory duration in former late talkers ( LT's ), children with Precordial catch syndrome ( PCS ), and oral clefts, with information decaying before 2000 ms.
• In medicine, the "'cardiac examination "', also "'precordial exam "', is performed as part of a physical examination, or when a patient presents with chest pain suggestive of a cardiovascular pathology.
• Im doing mbbs . . i cant study anything before the exams . . because of this i've failed many exams . . . as soon as i start reading, my heart starts pounding . . ill get precordial pain . . this is since 4years
• The precordial thump may be considered in those with witnessed, monitored, unstable ventricular tachycardia ( including pulseless VT ) if a defibrillator is not immediately ready for use, but it should not delay CPR and shock delivery or be used in those with unwitnessed out of hospital arrest.
• Furthermore to illustrate the perils of performing first aid when not adequately trained, the episode " Grateful " has a civilian character causing a chest injury when he incorrectly performs a precordial thump, a procedure sometimes performed by Gage or DeSoto, and is severely reprimanded by Dr . Early for the mistake.
• The 12-lead EKG has a total of three " limb leads " and three " augmented limb leads " arranged like spokes of a wheel in the coronal plane ( vertical ) and six " precordial leads " that lie on the perpendicular transverse plane ( horizontal ).