Here We have Provide Explanation for correct answer of Medical Instrumentation Module 5. Other Module will be available on our telegram Channel. So don’t forget to join our telegram channel.
Disclaimer: This answer key is provided as a reference only to help you review your own work and identify areas for improvement. It is not intended to be a substitute for independent learning or a guarantee of correctness.
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Q – 1 The pacemaker of the normal heart is the – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Purkinje Fibers (B) AV Node (C) AV Bundle (D) SA Node
Check Answer
The correct answer is (D) SA Node. The sinoatrial (SA) node, also known as the pacemaker of the heart, is a group of specialized cells located in the right atrium that generates electrical impulses, initiating the contraction of the heart muscle.
Q – 2 Bundle of His is a network of – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Muscle Fibres Present Only In The Ventricle Wall (B) Nerve Fibres Distributed in Ventricles (C) Muscle Fibres Distributed Throughout The Heart Walls (D) Nerve Fibres Found Throughout The Heart
Check Answer
The correct answer is (C) Muscle Fibres Distributed Throughout The Heart Walls. The Bundle of His, also known as the atrioventricular (AV) bundle, is a bundle of muscle fibers that conducts electrical impulses from the AV node to the ventricles, distributing the impulses throughout the ventricular walls.
Q – 3 What is the primary function of a pacemaker in the heart? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) To Pump Blood Throughout The Body (B) To Prevent Blood Clots (C) To Regulate The Heart Rate (D) To Increase Blood Pressure
Check Answer
The correct answer is (C) To Regulate The Heart Rate. The primary function of a pacemaker (both the natural pacemaker and an implanted device) is to regulate the heart rate by generating electrical impulses that stimulate the heart muscle to contract.
Q – 4 The reason why tricuspid and bicuspid valves are closed is – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Attempted Backflow Of Blood Into The Atria (B) Ventricular Filling (C) Atrial Systole (D) Ventricular Relaxation
Check Answer
The correct answer is (A) Attempted Backflow Of Blood Into The Atria. During ventricular contraction (systole), the tricuspid and bicuspid (mitral) valves close to prevent the backflow of blood from the ventricles into the atria.
Q – 5 What is the normal heart rate for an adult at rest? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A)60-100 Beats Per Minute (B)100-120 Beats Per Minute (C)40-60 Beats Per Minute (D)140-160 Beats Per Minute
Check Answer
The correct answer is (C) 40-60 Beats Per Minute. The normal resting heart rate for an adult ranges from 60 to 100 beats per minute, with the average being around 60 to 80 beats per minute. So Answer can also be (A) 60-100 Beats per minute.
Q – 6 What is the primary complication associated with pacemaker implantation? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A)Infection (B)Blood Clots (C)Allergic Reaction To The Device (D)Lead Dislodgment
Check Answer
The correct answer is (A) Infection. The primary complication associated with pacemaker implantation is infection at the implantation site or along the leads.
Q – 7 What is the life expectancy of a pacemaker battery? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A)5-7 Years (B)10-12 Years (C)2-3 Years (D)15-20 Years
Check Answer
The correct answer is (B) 10-12 Years. The typical lifespan of a pacemaker battery is between 5 and 12 years, with most modern pacemakers having a battery life of around 10-12 years.
Q – 8 What is the most common type of pacemaker implantation procedure? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
The correct answer is (A) Transvenous. The most common type of pacemaker implantation procedure is the transvenous approach, where the pacemaker leads are inserted through a vein, typically in the chest or upper arm, and guided into the heart.
Q-9 Most lasers are electrically inefficient devices – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) TRUE (B) False
Check Answer
The correct answer is (A) TRUE. Most lasers are electrically inefficient devices, meaning that they convert only a small fraction of the input electrical energy into useful laser light.
Q-10 What type of laser could cause skin cancer if not used properly? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Eximer Laser (B) Blue Semiconductor (C) Red Semiconductor Laser (D) YAG Laser
Check Answer
The correct answer is (C) Red Semiconductor Laser. Red semiconductor lasers, which emit light in the visible red region of the spectrum, can potentially cause skin cancer if used improperly due to their high energy and ability to penetrate the skin.
Q-11 Signs of a heart attack include: – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Chest Pain Or Pressure Lasting 3 Or More Minutes (B) Sweating, Pale Or Ashen Skin Color (C) Shortness Of Breath (D) All Of The Above
Check Answer
The correct answer is (D) All Of The Above. Signs of a heart attack include chest pain or pressure lasting 3 or more minutes, sweating, pale or ashen skin color, and shortness of breath.
Q-12 A public access Automatic External Defibrillator is: – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) Not Needed If CPR Is Already Being Performed During Cardiac Arrest (B) To Be Used Only By Licensed Professionals (C) A Medical Device That Delivers An Electrical Shock To A Person In Cardiac Arrest (D) Used On An Unconscious Person Who Has A Pulse
Check Answer
The correct answer is (C) A Medical Device That Delivers An Electrical Shock To A Person In Cardiac Arrest. A public access Automatic External Defibrillator (AED) is a medical device that can analyze a person’s heart rhythm and deliver an electric shock to attempt to restore a normal heart rhythm in the case of cardiac arrest.
Q – 13 CPR does not need to be performed if an AED has already been used. – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) TRUE (B) False
Check Answer
The correct answer is (B) False. CPR (cardiopulmonary resuscitation) should be continued after an AED has been used, as the AED delivers a shock to attempt to restart the heart, but CPR is still necessary to maintain blood flow and oxygen delivery until advanced medical care arrives.
Q – 14 It is okay to touch the patient when an AED is analyzing. – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) TRUE (B) False
Check Answer
The correct answer is (B) False. It is not safe to touch the patient when an AED is analyzing the heart rhythm or delivering a shock, as this could expose the rescuer to the electrical current.
Q – 15 Each minute defibrillation is delayed reduces the chance of survival of sudden cardiac arrest by: – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) 10 (B) 20 (C) 30 (D) 15
Check Answer
The correct answer is (C) 30. Each minute that defibrillation is delayed in a case of sudden cardiac arrest reduces the chance of survival by approximately 7-10%, or about 30% after 3 minutes.
Q – 16 In Stimulated Absorption, what is the lifetime of atoms ground state? – Telegram Channel par sab milga, join 👉 @ayurveda_sidhi
(A) 1 Second (B) 1 Minute (C) 1 Hour (D) Infinity
Check Answer
The correct answer is (D) Infinity. In stimulated absorption, the lifetime of atoms in the ground state is considered to be infinity, as the atoms remain in the ground state until they absorb energy and transition to an excited state.
Q – 17 Phonons are
(A) Quanta Of Energy (B) Quanta Of Light Waves (C) Quanta Of Sound Waves (D) Quanta Of Heat
Check Answer
The correct answer is (C) Quanta Of Sound Waves. Phonons are quanta of sound waves or vibrational energy in a solid material.
Q – 18 Which of the following is not a characteristic of LASERS?
The correct answer is (C) Divergent. One of the key characteristics of lasers is that they produce a highly collimated (parallel) beam of light, which is the opposite of divergent.
Q – 19 Laser is used in LIDAR for what purpose?
(A) Drilling (B) Optical Carrier Signal (C) Range Finder (D) High-Speed Photography
Check Answer
The correct answer is (C) Range Finder. Lasers are commonly used in LIDAR (Light Detection and Ranging) systems as range finders, where the laser beam is used to measure the distance to an object by timing the reflection of the laser pulse.
Q – 20 Lasers are used for welding of wires because they can be focused onto a fine spot.
(A) TRUE (B) False
Check Answer
The correct answer is (A) TRUE. One of the advantages of using lasers for welding of wires is that the laser beam can be focused onto a very fine spot, allowing for precise and localized welding of small components.
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