72-75 identify each of the following EKG Strips Below A B ------ • LILL WWWwwwww

Question

72-75 identify each of the following EKG Strips Below A B ------ • LILL WWWwwwwwwwwwwwwwwwwwwm. 72. I am Atrial Fibrillation 73. I am a 3 rd degree Nodal block 74, I am Ventricular Fibrillation 75. I am a normal EKG 76. The 'extrinsic pathway' of coagulation begins with the a. sticking of platelets to damaged tissue b. activation of a proenzyme exposed to collagen C. release of tissue factor by damaged endothelium d. release of heparin from the liver e. conversion of prothrombin to thrombin 77. The 'intrinsic pathway' of coagulation begins with the a. sticking of platelets to damaged tissue b. activation of platelets exposed to collagen C. release of tissue factor by damaged endothelium d. release of heparin from the liver e, conversion of prothrombin to thrombin 78. The common pathway of coagulation begins with the a. sticking of platelets to damaged tissue b. activation of a proenzyme exposed to collagen C. release of tissue factor by damaged endothelium d, activating of a clotting factor that converts prothrombin to thrombin e, activation of a clotting factor that converts fibrinogen to fibrin

Explanation / Answer

72. The picture C is atrial fibrillation

There is NO P wave, R-R intervals are irregularly irregular

73. The picture B is 3 rd degree nodal block

As there is no interrelation between P & QRS

Atria and ventricles are discharging independently

Note: this is a cardiological emergency. Pacemakers should be implanted

74. The picture D is ventricular Fibrillation

As No P wave

No actual QRS morphology

Irregular fast wide complexes all through without any distinct morphology

Note: another cardiac emergency

should be defibrillated immediately

75. the picture A is normal EKG

Proper P wave followed by QRS and T

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