What is the difference between P-wave and T-wave? -Biology

What is the difference between P-wave and T-wave? -Biology
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a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of the ventricles. c. The end of T wave marks the

Description : a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of the ventricles. c. The end of T wave marks the

Last Answer : a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of ... The end of T wave marks the end of _____

a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of the ventricles. c. The end of T wave marks the

Description : a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of the ventricles. c. The end of T wave marks the

Last Answer : a. The P wave represent the electrical excitation of the_____ b. The QRS complex represents the ____ of ... The end of T wave marks the end of _____

True statements about ECG include: a. the P-R interval corresponds to the duration of atrial systole b. the T-wave ends at the time of aortic valve closure c. the ST segment represents repolarization of the ventricles d. all

Description : True statements about ECG include: a. the P-R interval corresponds to the duration of atrial systole b. the T-wave ends at the time of aortic valve closure c. the ST segment represents repolarization of the ventricles d. all

Last Answer : all

Match the column - I with column - II. Column-I Column-II (A) P-wave (i) Depolarisation of ventricles (B) QRS complex (ii) Repolarisation of ventricles (C) T-wave (iii) Coronary ischaemia (D) Reduction in the size of T- wave (iv) Depolarisation of atria (v) Repolarisation of atria Select the correct option. (A) (B) (C) (D) (a) (ii) (iii) (v) (iv) (b) (iv) (i) (ii) (iii) (c) (iv) (i) (ii) (v) (d) (ii) (i) (v) (iii)

Description : Match the column - I with column - II. Column-I Column-II (A) P-wave (i) Depolarisation of ventricles (B) QRS complex (ii) Repolarisation of ventricles (C) T-wave (iii) Coronary ischaemia (D) Reduction in the size of T- wave (iv) ... ) (i) (ii) (iii) (c) (iv) (i) (ii) (v) (d) (ii) (i) (v) (iii)

Last Answer : (b) (iv) (i) (ii) (iii)

Which of the following ECG characteristics is usually seen when a patient’s serum potassium level is low? a) U wave The U wave is an ECG waveform characteristic that may reflect Purkinje fiber repolarization. It is usually seen when a patient’s serum potassium level is low. b) T wave The T wave is an ECG characteristic reflecting repolarization of the ventricles. It may become tall or “peaked” if a patient’s serum potassium level is high. c) P wave The P wave is an ECG characteristic reflecting conduction of an electrical impulse through the atria. d) QT interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Description : Which of the following ECG characteristics is usually seen when a patient's serum potassium level is low? a) U wave The U wave is an ECG waveform characteristic that may ... interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Last Answer : a) U wave The U wave is an ECG waveform characteristic that may reflect Purkinje fiber repolarization. It is usually seen when a patient’s serum potassium level is low.

What does the P wave of an ECG indicate? -Biology

Description : What does the P wave of an ECG indicate? -Biology

Last Answer : answer:

The difference of pressure between the inside and outside of a liquid drop is (A) p = T × r (B) p = T/r (C) p = T/2r (D) p = 2T/r

Description : The difference of pressure between the inside and outside of a liquid drop is (A) p = T × r (B) p = T/r (C) p = T/2r (D) p = 2T/r

Last Answer : Answer: Option D

The sinusoidal wave `y(x,t) = ym sin(kx-omegat)` is incident on the fixed end of a string at `x = L`. The reflected wave is given by :-

Description : The sinusoidal wave `y(x,t) = ym sin(kx-omegat)` is incident on the fixed end of a string at `x = L`. The reflected wave is given by :-

Last Answer : The sinusoidal wave `y(x,t) = ym sin(kx-omegat)` is incident on the fixed end of a string at `x = L` ... (kx+omegat-kL)` D. `y_(m)sin(kx+omegat-2kL)`

Speed ‘v’ with which wave travels through a medium is given by A. modulus of elasticity/density of the medium B. modulus of elasticity/√(density of the medium) C. √(modulus of elasticity/density of the medium) D. v=d/t

Description : Speed ‘v’ with which wave travels through a medium is given by A. modulus of elasticity/density of the medium B. modulus of elasticity/√(density of the medium) C. √(modulus of elasticity/density of the medium) D. v=d/t

Last Answer : √(modulus of elasticity/density of the medium)

______ uses two optical fibers and a short-wave laser source, A) 1000Base-SX B) 1000Base-LX C) 1000Base-T D) none of the above

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Last Answer : 1000Base-LX

When the post-cardiac surgery patient demonstrates restlessness, nausea, weakness, and peaked T waves, the nurse reviews the patient’s serum electrolytes anticipating which abnormality? a) Hyperkalemia Hyperkalemia is indicated by mental confusion, restlessness, nausea, weakness, and dysrhythmias (tall, peaked T waves). b) Hypercalcemia Hypercalcemia would likely be demonstrated by asystole. c) Hypomagnesemia Hypomagenesemia would likely be demonstrated by hypotension, lethargy, and vasodilation. d) Hyponatremia Hyponatremia would likely be indicated by weakness, fatigue, and confusion without change in T wave formation

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Last Answer : a) Hyperkalemia Hyperkalemia is indicated by mental confusion, restlessness, nausea, weakness, and dysrhythmias (tall, peaked T waves).

Premature ventricular contractions are considered precursors of ventricular tachycardia when they a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they indicate increasing ventricular irritability and are considered forerunners of ventricular tachycardia (VT). b) occur during the QRS complex. PVCs are dangerous when they occur on the T wave. c) have the same shape. PVCs are dangerous when they are multifocal (have different shapes). d) are paired with a normal beat. A PVC that is paired with a normal beat is termed bigeminy.

Description : Premature ventricular contractions are considered precursors of ventricular tachycardia when they a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they ... paired with a normal beat. A PVC that is paired with a normal beat is termed bigeminy.

Last Answer : a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they indicate increasing ventricular irritability and are considered forerunners of ventricular tachycardia (VT).

A 70-year-old patient presented with weakness, tiredness and muscle cramps. The ECG showed Q-T prolongation, flattening of T wave and occasional A-V block. His serum K+ was low (2.8 mEq/L). He admitted taking a laxative every day for the past several months. Which laxative could be responsible for the above condition: A. Bisacodyl B. Liquid paraffin C. Methylcellulose D. Bran

Description : A 70-year-old patient presented with weakness, tiredness and muscle cramps. The ECG showed Q-T prolongation, flattening of T wave and occasional A-V block. His serum K+ was low (2.8 mEq ... could be responsible for the above condition: A. Bisacodyl B. Liquid paraffin C. Methylcellulose D. Bran

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Compare sky wave and space wave propagation w.r.t. following points. (i) Frequency range (ii) Effect of fading (iii)Polarization (iv)Application

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Description : Define fading w.r.t. wave propagation. 

Last Answer : Fading: The fluctuation in signal strength at a receiver, which is mainly due to the interference of two waves which left the same source but arrived at the destination by different paths, is known as fading. 

A single phase, half-wave, controlled rectifier has 400 sin (314 t) as the input voltage and R as the load...

Description : A single phase, half-wave, controlled rectifier has 400 sin (314 t) as the input voltage and R as the load. For a firing angle of 60° for the SCR, the average output voltage is   (a) 240/π (b) 400/π (c) 300/π (d) 200/π 

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RMS value of rectangular wave of period T, having a value of +V for a duration T1(<T) and -V for the duration...

Description : RMS value of rectangular wave of period T, having a value of +V for a duration T1(

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