Ether

Ether

Q. 1

Ether was first used by:

 A Preistly
 B Morton
 C Wells
 D Simpson
Q. 1

Ether was first used by:

 A Preistly
 B Morton
 C Wells
 D Simpson
Ans. B

Explanation:

Morton


Q. 2

All of the following are the disadvantages of anaesthetic ether, EXCEPT:

 A

Induction is slow

 B

Irritant nature of ether increases salivary and bronchial secretions

 C

Cautery cannot be used

 D

Affects blood pressure and is liable to produce arrhythmias

Q. 2

All of the following are the disadvantages of anaesthetic ether, EXCEPT:

 A

Induction is slow

 B

Irritant nature of ether increases salivary and bronchial secretions

 C

Cautery cannot be used

 D

Affects blood pressure and is liable to produce arrhythmias

Ans. D

Explanation:

Ether liberates catecholamines and tends to maintain blood pressure.

Cardiac arrythmias occur rarely with ether and

there is no sensitization of the myocardium to circulating catecholamines.

Ref: KDT, 5th Edition, Pages 338-339; Lee’s Synopsis of Anaesthesia, 12th Edition, Pages 168-169;Textbook of Anaesthesia By Aitkinhead, 4th Edition, Page 162; Basics of Anaesthesia E-Book: Expert Consult By Ronald D. Miller, Manuel Pardo, 2011


Q. 3

In formal ether concentration technique, which layer contain parasites –

 A

Ether

 B

Fecal debris

 C

Formal water

 D

Sediment

Q. 3

In formal ether concentration technique, which layer contain parasites –

 A

Ether

 B

Fecal debris

 C

Formal water

 D

Sediment

Ans. D

Explanation:

Ans. is ‘d’ i.e., Sediment

.   In ether concentration technique, four layers develop after centrifugation ( from top to bottom) :- (i) Ether and dissolved fat; (ii) fecal debris; (iii) forrmal water; (iv) sediment containing parasites


Q. 4

Stages of anesthesia were established by

 A

Ether

 B

N20

 C

Halothane

 D

Chloroform

Q. 4

Stages of anesthesia were established by

 A

Ether

 B

N20

 C

Halothane

 D

Chloroform

Ans. A

Explanation:

A i.e. Ether


Q. 5

No effect on heart

 A

Chloroform

 B

Ether

 C

Methoxyflurane

 D

Halothane

Q. 5

No effect on heart

 A

Chloroform

 B

Ether

 C

Methoxyflurane

 D

Halothane

Ans. B

Explanation:

B i.e. Ether


Q. 6

The plane of surgical anesthesia during ether anesthesia is defined as

 A

Loss of consciousness

 B

Loss of consciousness to the onset of spontaneous res­piration

 C

From onset of regular respiration to cessation of spontaneous breathing

 D

Absence of reflexes

Q. 6

The plane of surgical anesthesia during ether anesthesia is defined as

 A

Loss of consciousness

 B

Loss of consciousness to the onset of spontaneous res­piration

 C

From onset of regular respiration to cessation of spontaneous breathing

 D

Absence of reflexes

Ans. C

Explanation:

Ans. c. From onset of regular respiration to cessation of spontaneous breathing


Q. 7

Anaesthetic effect of ether was demonstrated by‑

 A

Morgan

 B

Priestly

 C

Morton

 D

None

Q. 7

Anaesthetic effect of ether was demonstrated by‑

 A

Morgan

 B

Priestly

 C

Morton

 D

None

Ans. C

Explanation:

Ans. is ‘c’ i.e., Morton 

Ether (Diethyl ether)

  • Morton, a dentist and medical student at Boston, after experimenting on animals, gave a demonstration of ether anaesthesia, in 1846.
  • It is highly volatile liquid, produces irritating vapours which are highly inflammable and explosive  cautery should not be used.
  • It is a potent anaesthetic with good analgesic and muscle relaxant property Ether has maximum muscle relaxant property among anaesthetics.
  • It is highly soluble in blood→induction is prolonged and unpleasant with marked postoperative nausea and vomiting.
  • BP and respiration are well maintained because of reflex stimulation and high sympathetic tone. o It can cause hyperglycemia→ Contraindicated in diabetic.
  • It is very cheap and relatively safe even in inexperienced hands.


Leave a Reply

%d bloggers like this:
Malcare WordPress Security