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🌊 Aquaflask - 🌊 LQ6: Module 7 2&3 (Cardiac Electrophysiology and the Electrocardiogram, The Cardiac Cycle and Heart Sounds) [page 95-115]

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Published	01/14/2024	Which of the following associations in the phrases of FRAP and their primary cause is true? A. Phase 0 - Inward Calcium Current B. Phase 1 -…
Published	01/14/2024	Compared to FRAP, the slow response action potential has:A. More negative resting membrane potential B. Faster velocity of upstroke C. More …
Published	01/14/2024	The rate of discharge of nodal cells can be increased by decreasing the A. Initial resting potential (less negative)B. Threshold potentialC. Slop…
Published	01/14/2024	The ventricular muscle contraction is in the state of absolute refractory period at a point?A. Immediately after phase 2 B. During phase 3C. At t…
Published	01/14/2024	According to Guyton, the pacemaker potential is due to the inherent leakiness of nodal cells to A. CaB. ClC. KD. Na{{c1::Na}}
Published	01/14/2024	The primary cause of the plateau phase of the FRAP is:A. Slow inward sodium current B. Outward potassium current C. Inward calcium current v…
Published	01/14/2024	Plateau prolongs the potential A. SRAPB. FRAP C. Neither SRAP or FRAP D. Both SRAP and FRAP{{c1::FRAP}}
Published	01/14/2024	Phase 0 is primarily due to slow Na+ inward currents:A. SRAP B. FRAP C. Neither SRAP or FRAPD. Both SRAP and FRAP{{c1::C. Neither SRAP or FR…
Published	01/14/2024	Repolarization is due to K+ efflux A. SRAP B. FRAP C. Both SRAP and FRAP D. Neither SRAP and FRAP {{c1::C. Both SRAP and FRAP…
Published	01/14/2024	Repolarization phase is a single slow curve, which are not well demarcatedA. SRAP B. FRAPC. Both SRAP and FRAPD. Neither SRAP and FRAP {{c1:…
Published	01/14/2024	Which of these best describes the isovolumetric relaxation phase of the cardiac cycle?A. Ventricle is at its utmost rest B. Aortic pressure is le…
Published	01/14/2024	The atria act as blood reservoirs from the onset of the isovolumetric contraction phase to the onset of the ___ phase. A. reduced ejectionB. Isov…
Published	01/14/2024	Preload will increase by increasing the:A. Reserve volume B. End systolic volume C. End diastolic volume D. Systolic volume reserve&nbs…
Published	01/14/2024	Aortic pressure is highest during this stage of the cardiac cycle:A. Isovolumetric contraction B. Isovolumetric relaxation C. Atrial systole…
Published	01/14/2024	Systole is from the onset of ___ phase to the onset of ___ phase. A. Isovolumetric contraction - Isovolumetric relaxationB Isovolumetric con…
Published	01/14/2024	Ventricular volume is the highest at the end of this phase of cardiac cycle.A. Isovolumetric relaxation B. Aortic systole C. Rapid filling&n…
Published	01/14/2024	Which of the following is accurately paired? A. V1 - 5th ICS, right PSM B. V2 - 5th ICS, right PSM C. V4 - 5th ICS, left midclavicular …
Published	01/14/2024	What is the perpendicular lead of aVR?A. IB. IIC. IIID. aVF{{c1::C.III}}
Published	01/14/2024	The standard ECG amplitude is:A. 5 mmB. 10 mmC. 15 mm D. 20 mm{{c1::B. 10 mm}}
Published	01/14/2024	The orientation of the limb leads is the following plane:A. TransverseB. SagittalC. Coronal D. Frontal {{c1::Coronal or Frontal }}
Published	01/14/2024	Which of the following coronary arteries is the major arterial supply of the AV node? A. Right Coronary Artery B. LCxC. Septal branches of t…
Published	01/14/2024	This represents the time of atrial depolarization and conduction of impulse through the AV node and the His-Purkinje system?A. ST interval B. QRS…
Published	01/14/2024	The T wave occurs at the same time with which cardiac cycle?A Isovolumic Contraction B. Isovolumic RelaxationC Rapid InflowD Ejection{{…
Published	01/14/2024	The chemical energy used to provide work for contraction is predominantly due to what?A Oxidation of fatty acidsB Lactate breakdownC Glucose…
Published	01/14/2024	The delay in depolarization conduction of the AV node is due to:A The fibrous tissue surrounding the AV nodeB Intrinsic property of AV nodeC…
Published	01/14/2024	If the papillary muscles of the left ventricle are paralyzed, which of these are likely to occur?A. Mitral insufficiency B. Diastolic murmur&nbsp…
Published	01/14/2024	End systolic volume is the volume of blood left in ventricle at the end of which cardiac cycleA. Atrial contraction B. R filling C. Isovolum…
Published	01/14/2024	Sam counted 18 small boxes between two successive R waves on Nhel's ECG reading and calculated for heart rate. It should be: A. 70 bpm B. 78…
Published	01/14/2024	Gea counted 2.5 small squares from the onset of the Q wave to the end of the S wave. She then concluded that the duration of the QRS complex is ___ se…
Published	01/14/2024	The patient is suspected to have right atrial enlargement because of this ECGA. QRS intervalB. PR interval C. QT interval D. ST interval&nbs…
Published	01/14/2024	Which of the following cna directly cause a decrease in heart rate?A Angiotensin II B NorepinephrineC Low pH D Hypercalc…
Published	01/14/2024	In a hyperkalemic patient, heart stops in diastole becauseA Of a decrease in RMP, leading to inactivation of Na channelsB Slow conduction as a result …
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