Deck 7: Medical Instrumentation and Measurements

Question 1

What is necessary for providing a common reference for measurement?

A)active electrode
B)ground electrode
C)tape recorder
D)oscilloscope

Answer 1

ground electrode

Question 2

Which of the following interpreter can diagnose various muscular disorders by listening to the sounds produced when the muscle potentials are fed to loudspeaker?

A)EEG
B)ECG
C)VCG
D)EMG

Answer 2

EMG

Question 3

What is the diameter of silver electrodes in the amplifier circuit of Johnson et al?

A)2 mm
B)4 mm
C)6 mm
D)10 mm

Answer 3

6 mm

Question 4

What should be CMRR of preamplifier upto 5 Khz?

A)10 dB
B)30 dB
C)90 dB
D)greater than 90 dB

Question 5

Modern EMG machines are PC based.

Question 6

EMG instrument is useful for making study of                        

A)cardiovascular function
B)neuromuscular function
C)nervous function
D)Immune function

Question 7

Which of the following instrument is used for making a study of reflex responses?

A)EEG
B)ECG
C)VCG
D)EMG

Question 8

Blood pressure measurement can be classified in major way(s).

A)2
B)5
C)7
D)10d

Question 9

The regular BP cuff is a non - invasive method of measuring blood pressure.

Question 10

How is the oxygen content monitored in blood?

A)By Korotkoff Sounds
B)By Pulse Oximetry
C)By Fluorescence
D)By luminescence

Question 11

What principle does pulse oximetry follow?

A)Law of Absorbance
B)Law of Reflection
C)Beer - Lambert Law
D)Law of Irradiance

Question 12

The normal BP cuff using instrument is called as                         

A)Spirometer
B)Sphygmomanometer
C)Stethoscope
D)Oscilloscope

Question 13

Which instrument is used to listen to the Korotkoff sounds?

A)Stethoscope
B)Pneumotachometer
C)Piezoelectric Microphone
D)Sphygmomanometer

Question 14

For infants, the pulse oximetry band is attached to their              

A)arm
B)leg
C)palm
D)foot

Question 15

Which of the following devices/ methods do not use a cuff?

A)Rheographic Method
B)Automatic Blood Pressure Measuring using Korotkoff method
C)Oscillometric Measurement Method
D)Continuous Slow Flow Flushing Method

Question 16

Which type of transducer is commonly used for invasive blood pressure measurement?

A)Capacitive
B)Rheostatic
C)Piezoelectric
D)Potentiometric

Question 17

Which of the following uses ultrasound to check the blood flow?

A)Doppler Shift Method
B)Catheter Tip Method
C)Differential Auscultatory Technique
D)Oscillometric Method

Question 18

In the differential auscultatory technique, where is the pressure sensor located?

A)In the middle of the cuff
B)In the upper portion of the cuff
C)In the lower portion of the cuff
D)Outside the cuff

Question 19

Which of the following statement is correct?

A)130/90 mm Hg is considered high and require treatment
B)100/55 mm Hg is considered an ideal blood pressure
C)105/50 mm Hg makes one active
D)190/110 mm Hg may harm vital organs

Question 20

Blood pressure is the pressure exerted by blood against                        

A)kidneys
B)artery walls
C)brain
D)stomach

Question 21

Blood pressure is measured in terms of                          

A)mm Hg
B)mm
C)cm Hg
D)Hg

Question 22

A person can suffer from both low blood pressure and high blood pressure.

Question 23

A normal heart rate in an adult at rest is                              

A)110
B)125
C)60
D)75

Question 24

Unhealthy growth of tissue due to higher pressures on the walls of the artery is termed as

A)atheroma
B)aroma
C)adenoma
D)aroma and adenoma

Question 25

Any mechanism that increases heart rate is said to have a positive effect.

A)cholinergic
B)inotropic
C)chronotrophic
D)feedback