Homework Answers
75 STANDARD LEAD
ANS :E
Standard lead also called augmented leads.
LEADS aVR, aVL, and aVF are the augmented limb leads. They are derived from the same three electrodes as leads I, II, and III.
Augmented limb leads use Goldberger"s centeral terminal as negative pole.
76 D all of the above
77precordial leads
It lies in horizontal plane.which is perpendicular to other 6 leads six precordial electrodes act as the positive poles for the six corresponding precordial leads: (V1, V2, V3, V4, V5 and V6). Wilson's central terminal is used as the negative pole.
78.THERMAL ECG PAPER
ANS: d all of the above
79.d
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a. right arm and right leg electrodes. b. right arm and left leg electrodes. e right arm and left arm electrodes. d...
.. FVC d. EKG c. Band D 53. The valve between the left upper and lower chambers of the heart is the a p...
.. FVC d. EKG c. Band D 53. The valve between the left upper and lower chambers of the heart is the a pulmonic semilunar valve. b. tricuspid valve. e. mitral valve. d. aortic semilunar valve. 54. Another name for the bicuspid valve is pulmonic semilunar valve. b. tricuspid valve. c. mitral valve d. aortic semilunar valve. 55. Use of ultrasonic waves directed through the heart to study the structure and motion of the heart is a FCHO. b. ECG...
artifact is an upward and downward movement of the waveform and the isoelectric lines shift locations....
artifact is an upward and downward movement of the waveform and the isoelectric lines shift locations. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline artifact appears as jagged peaks with irregular height and spacing. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline artifact appears as series of small spikes that create a think looking tracing. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline 91. This artifact occurs when...
You measure the voltage difference between two ECG electrodes placed on your right arm and left...
You measure the voltage difference between two ECG electrodes placed on your right arm and left leg (lead II). You use an instrumentation amplifier with a differential gain of 75 and a CMRR of 80 dB. The common-mode voltage, present at both of your amplifier inputs, is 1.2 V. Your ECG waveform varies between -2.5 mV and +2.5 mV. What are the bounds of the output voltage of the instrumentation amp (i.e. the min and max voltage)? Give your answer...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer to the bipolar or standard leads. a. What are names of the leads? b. The bipolar leads provide pictures of the plane of the heart. c. What electrodes and lead wires are used to create the bipolar leads? d. If you see an artifact on lead I, which two electrodes and lead wires should you look at? e. If you see an artifact on...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A C E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: E C to D D to C or Label the electrodes on...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A С E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: C to D D to C or Label the electrodes on the...
Decrease the chant speed Increase the chart speed 81. What is the default chart speed? 10 mm/second b....
Decrease the chant speed Increase the chart speed 81. What is the default chart speed? 10 mm/second b. 10 mm/mV c. 20 mm/second d. 25 mm/second e. 25 mm/mV What is the default gain or sensitivity? a. 10 mm/second b. 10 mm/ mV c. 20 mm/second d. 25 mm/second e. 25 mm/mV What chest electrode is placed on the fourth intercostal space at the right sternal edge! a. Vi b. V2 e V3 d. 14 e. V6 What chest electrode...
Four U tubes each have distilled water in the right arm, a solution in the left...
Four U tubes each have distilled water in the right arm,
a solution in the left arm, and a semipermeable membrane between
arms.
(a) If the solute was KCl, which solution was the most
initially?
A
B
C
D
(b) If each solute is different but all the solutions
have the same molarity, which contains the smallest number of
dissolved ions?
A
B
C
D
the answers are: a. 0.24, current flows left to right b. 0.24, current flows right to...
the answers are:
a. 0.24, current flows left to right
b. 0.24, current flows right to left
c. 0.41, current flows tight to left
d. 0.65, current flows left to right
e. 0.65, current flows right to left
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 3...
80. The patient's tracing shows very tall wave forms. What change should you make before obtaining...
80. The patient's tracing shows very tall wave forms. What change should you make before obtaining the tracing? a. Decrease the gain or sensitivity b. Increase the gain or sensitivity c. Decrease the chart speed d. Increase the chart speed 81. What is the default chart speed? a. 10 mm/second b. 10 mm/mV 20 mm/second d. 25 mm/second с. e. 25 mm/mV 82. What is the default gain or sensitivity? 10 mm/second 10 mm/mV 20 mm/second d. 25 mm/second 25...
.. FVC d. EKG c. Band D 53. The valve between the left upper and lower chambers of the heart is the a pulmonic semilunar valve. b. tricuspid valve. e. mitral valve. d. aortic semilunar valve. 54. Another name for the bicuspid valve is pulmonic semilunar valve. b. tricuspid valve. c. mitral valve d. aortic semilunar valve. 55. Use of ultrasonic waves directed through the heart to study the structure and motion of the heart is a FCHO. b. ECG...
artifact is an upward and downward movement of the waveform and the isoelectric lines shift locations. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline artifact appears as jagged peaks with irregular height and spacing. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline artifact appears as series of small spikes that create a think looking tracing. a. Somatic tremor b. AC interference c. Interrupted baseline d. Wandering baseline 91. This artifact occurs when...
leads or pictures D. 12-Lead ECG electrodes and lead wires create 2. The following questions refer to the bipolar or standard leads. a. What are names of the leads? b. The bipolar leads provide pictures of the plane of the heart. c. What electrodes and lead wires are used to create the bipolar leads? d. If you see an artifact on lead I, which two electrodes and lead wires should you look at? e. If you see an artifact on...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A C E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: E C to D D to C or Label the electrodes on...
Identify the components of the electrolytic electrochemical cell below, placing the anode on the left and the cathode on the right. Use the terms salt bridge, zinc nitrate solution, copper nitrate solution, copper electrode, and zinc electrode. Also, label the electrodes as + and - A С E Direction of electron flow (circle one): A to B B to A or Direction of cation flow through salt bridge: C to D D to C or Label the electrodes on the...
Decrease the chant speed Increase the chart speed 81. What is the default chart speed? 10 mm/second b. 10 mm/mV c. 20 mm/second d. 25 mm/second e. 25 mm/mV What is the default gain or sensitivity? a. 10 mm/second b. 10 mm/ mV c. 20 mm/second d. 25 mm/second e. 25 mm/mV What chest electrode is placed on the fourth intercostal space at the right sternal edge! a. Vi b. V2 e V3 d. 14 e. V6 What chest electrode...
Four U tubes each have distilled water in the right arm,
a solution in the left arm, and a semipermeable membrane between
arms.
(a) If the solute was KCl, which solution was the most
initially?
A
B
C
D
(b) If each solute is different but all the solutions
have the same molarity, which contains the smallest number of
dissolved ions?
A
B
C
D
the answers are:
a. 0.24, current flows left to right
b. 0.24, current flows right to left
c. 0.41, current flows tight to left
d. 0.65, current flows left to right
e. 0.65, current flows right to left
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 3...
80. The patient's tracing shows very tall wave forms. What change should you make before obtaining the tracing? a. Decrease the gain or sensitivity b. Increase the gain or sensitivity c. Decrease the chart speed d. Increase the chart speed 81. What is the default chart speed? a. 10 mm/second b. 10 mm/mV 20 mm/second d. 25 mm/second с. e. 25 mm/mV 82. What is the default gain or sensitivity? 10 mm/second 10 mm/mV 20 mm/second d. 25 mm/second 25...
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