Nitrous Oxide (N2O) is not used alone as a general anaesthetic agent because of:** A. Difficulties in maintaining an adequate O2 concentration B. Adverse affects on liver C. Poor analgesics affects

Nitrous Oxide (N2O) is not used alone as a general anaesthetic agent because of:**
A. Difficulties in maintaining an adequate O2 concentration
B. Adverse affects on liver
C. Poor analgesics affects
by

1 Answer

Answer :

C. Poor analgesics affects
by

Related questions

Which of the following is correct about Nitrous Oxide N2O: A. N2O has high analgesic and low anaesthetic property at its minimum anaesthetic dose. “Low MAC; Max Anaesthetic Concentration” B. Absolutely contraindicated in pregnancy C. Has low blood diffusibility and result in hypoxia D. It is good anaesthetic and low MAC

Description : Which of the following is correct about Nitrous Oxide N2O: A. N2O has high analgesic and low anaesthetic property at its minimum anaesthetic dose. Low MAC; Max Anaesthetic Concentration B. Absolutely ... C. Has low blood diffusibility and result in hypoxia D. It is good anaesthetic and low MAC

Last Answer : C. Has low blood diffusibility and result in hypoxia

'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

Description : 'Diffusion hypoxia’ is likely to occur only after use of nitrous oxide because it: A. Is a respiratory depressant B. Has low blood solubility and is used in high concentration C. Is a very potent anaesthetic D. Interferes with diffusion of oxygen into the tissues

Last Answer : B. Has low blood solubility and is used in high concentration

The following general anaesthetic has poor muscle relaxant action: A. Ether B. Nitrous oxide C. Halothane D. Isoflurane

Description : The following general anaesthetic has poor muscle relaxant action: A. Ether B. Nitrous oxide C. Halothane D. Isoflurane

Last Answer : B. Nitrous oxide

Select the correct statement about nitrous oxide: A. It irritates the respiratory mucosa B. It has poor analgesic action C. It is primarily used as a carrier and adjuvant to other anaesthetics D. It frequently induces post anaesthetic nausea and retching

Description : Select the correct statement about nitrous oxide: A. It irritates the respiratory mucosa B. It has poor analgesic action C. It is primarily used as a carrier and adjuvant to other anaesthetics D. It frequently induces post anaesthetic nausea and retching

Last Answer : C. It is primarily used as a carrier and adjuvant to other anaesthetics

With view to Nitrous Oxide what is the major pharmacological problem? A. Contraindicated in pregnancy B. Contra indicated in cardiac dysrhythmias C. Diffusion hypoxia at the end of the case due to slow solubility of the agent in blood

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Last Answer : C. Diffusion hypoxia at the end of the case due to slow solubility of the agent in blood

Select the general anaesthetic having the most marked uterine relaxant action: A. Propofol B. Halothane C. Nitrous oxide D. Ether

Description : Select the general anaesthetic having the most marked uterine relaxant action: A. Propofol B. Halothane C. Nitrous oxide D. Ether

Last Answer : B. Halothane

The general anaesthetic having significant cardiodepressant property is: A. Halothane B. Enflurane C. Ether D. Nitrous oxide

Description : The general anaesthetic having significant cardiodepressant property is: A. Halothane B. Enflurane C. Ether D. Nitrous oxide

Last Answer : A. Halothane

The pair of compounds used as anaesthetic in medicines : (1) Ether, Ammonia (2) Nitrous oxide, Chloroform (3) Chloroform, Nitrogen dioxide (4) Nitrogen dioxide, ether

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Last Answer : Nitrous oxide, Chloroform

Which local anaesthetic agent is preferred for a confirmed hypersensitive patient: A. 3% prilocaine with felypressin B. Mepivacaine 3% without vasoconstrictor **

Description : Which local anaesthetic agent is preferred for a confirmed hypersensitive patient: A. 3% prilocaine with felypressin B. Mepivacaine 3% without vasoconstrictor **

Last Answer : B. Mepivacaine 3% without vasoconstrictor **

N2O excretes through: A. Urine B. Lungs

Description : N2O excretes through: A. Urine B. Lungs

Last Answer : B. Lungs

Which of the following statements concerning the use of radiography for children is incorrect? A. techniques are the same as those used in adults B. easier because of the smallness of the child’s mouth C. made difficult by the child’s nervousness and his tendency to gag D. helpful in overcoming some of these difficulties are consideratehandling of the child, the use of small size film and the use of ultra speed

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Last Answer : B. easier because of the smallness of the child’s mouth

A female patient comes to you complaining of persistent pain in a heavily restored central incisor; you suspect pulpitis and you have been told that she is in transit leaving by plane next day. Your treatment will be, A. Remove filling and place a sedative dressings B. Pulp extirpation and obturate with Ledermix dressings C. Prescribe analgesics and systemic antibiotic

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Last Answer : B. Pulp extirpation and obturate with Ledermix dressings

Opioid analgesics reduce pain by the release of which naturally appearing product:CHECK A. Serotonin B. Histamine C. Enkephalins/endomorphins/endorphins/dynorphines

Description : Opioid analgesics reduce pain by the release of which naturally appearing product:CHECK A. Serotonin B. Histamine C. Enkephalins/endomorphins/endorphins/dynorphines

Last Answer : C. Enkephalins/endomorphins/endorphins/dynorphines

Which is not an anasthetic agent in surgical operations? (1) Chloroform (2) Ether (3) Nitrous oxide (4) Acetone

Description : Which is not an anasthetic agent in surgical operations? (1) Chloroform (2) Ether (3) Nitrous oxide (4) Acetone

Last Answer : (4) Acetone Explanation: The currently used inhalational anaesthetic agents are mainly: nitrous oxide, isoflurane, sevoflurane and desflurane. Chloroform, ether, ethylene are other anaesthetic agents. However, they are not widely used in clinical practice today.

Which is not an anasthetic agent in surgical operations? (1) Chloroform (2) Ether (3) Nitrous oxide (4) Acetone

Description : Which is not an anasthetic agent in surgical operations? (1) Chloroform (2) Ether (3) Nitrous oxide (4) Acetone

Last Answer : Acetone

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3 ), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by (A) Increasing the oxygen concentration (B) Putting more quantity of V2O5 catalyst in the converter (C) Removing some quantity of SO3 during intermediate stage (D) Maintaining low temperature & pressure in the converter

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Last Answer : (C) Removing some quantity of SO3 during intermediate stage

You may suspect poor reaction to bleeding if there is a history of: A. Cirrhosis of liver B. Hypertension

Description : You may suspect poor reaction to bleeding if there is a history of: A. Cirrhosis of liver B. Hypertension

Last Answer : A. Cirrhosis of liver

As a general practitioner; you decide at an initial appointment that you can not handle a child due to lack of co-operation. Which of the following approaches would seem to be your alternative: A. Refer child to pedodontist B. Send child home until he/she cooperates C. Schedule child for General Anaesthetic session

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Last Answer : A. Refer child to pedodontist

The most important factor in surgical removal of impacted teeth is, A. Removal of enough bone B. Preoperative assessment C. The flap design D. The use of general anaesthetic

Description : The most important factor in surgical removal of impacted teeth is, A. Removal of enough bone B. Preoperative assessment C. The flap design D. The use of general anaesthetic

Last Answer : B. Preoperative assessment

A patient has developed a sever chest pain and difficulties in breathing while in the dental chair. Your initial response is: a. Administer glycerine trinitrate and monitor patient in upright position. b. Patient has an acute episode of angina as demonstrated by curve in ECG c. No treatment is required until confirmed as MI by ECG d. Patient has myocardial infarction as confirmed by ECG

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Last Answer : a. Administer glycerine trinitrate and monitor patient in upright position.

A patient has developed a sever chest pain and difficulties in breathing while in the dental chair. Your initial response is: A. Administer glycerine trinitrate and monitor patient in upright position B. Patient has an acute episode of angina as demonstrated by curve in ECG C. No treatment is required until confirmed as MI by ECG D. Patient has myocardial infarction as confirmed by ECG

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Last Answer : A. Administer glycerine trinitrate and monitor patient in upright position

What is NOT a result of toxic dosage of local anaesthetic: A. Angioneurotic oedema B. Hypotension C. Respiratory depression

Description : What is NOT a result of toxic dosage of local anaesthetic: A. Angioneurotic oedema B. Hypotension C. Respiratory depression

Last Answer : A. Angioneurotic oedema

Toxicity of anaesthetic is assessed by: A. Dose which is given B. Percentage of solution C. Vasoconstrictions amount

Description : Toxicity of anaesthetic is assessed by: A. Dose which is given B. Percentage of solution C. Vasoconstrictions amount

Last Answer : A. Dose which is given

Which of the following is the LEAST to cause toxicity from local anaesthetic injection: A. Injecting in supine position B. Injecting in vascular area C. Injecting without a vasoconstrictor D. Intravenous injections

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Last Answer : A. Injecting in supine position

To reduce the risk of side effects of local anaesthetic injections; you should follow all of the following EXCEPT: A. Aspirate before injection B. Use the smallest effective volume C. Use the weakest efficient percentage strength D. Inject rapidly

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Last Answer : D. Inject rapidly

When taking Mono Amino Oxidase Inhibitors (MAOI); which drugs are contra indicated: I. Barbiturate II. Local anaesthetic III. Pethidine IV. Acetyl salicylic acid A. All of the above B. None of the above C. I, II and III D. II, III and IV

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Last Answer : C. I, II and III

Toxicity as a result of anaesthetic solution can be seen more when: A. Injection in supine position B. Injection into vascular area C. Injection without vasoconstrictors D. Intravenous injection

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Last Answer : D. Intravenous injection

What is TRUE about Benzodiazepine and diazepam in 5-10mg oral dose used for oral sedation in dentistry: A. Good analgesic effect if given 1 hour prior to dental sessions B. Would be reversed by flumazepil because it is a Benzodiazepam C. Post operative headache D. There is a profound amnesic action and no side affects

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Last Answer : B. Would be reversed by flumazepil because it is a Benzodiazepam

Treatment of fibrous dysplasia consists of, A. Resection B. Complete excision if it affects small area; if it is large lesion, limited excision surgery because of the cosmetic considerations. C. Irradiation D. Excision and removal of adjacent teeth E. None of the above

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Last Answer : B. Complete excision if it affects small area; if it is large lesion, limited excision surgery because of the cosmetic considerations.

Do you ever think about the tactical difficulties confronting those smart, talented supporters of Trump when it comes to maintaining the viability of their boss?

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Last Answer : If saddled with the task, how would YOU go about it? Is there a chance in hell of ANY group pulling it off?

The Himalayan region is poor in mineral resources because (a) it is made up of crystalline rocks (b) displacement of rock strata has disturbed the arrangement of rocks and made it complex (c) the climatic conditions are not suitable for exploitation of minerals (d) the terrain makes exploitation of minerals difficult and very costly due to transport difficulties

Description : The Himalayan region is poor in mineral resources because (a) it is made up of crystalline rocks (b) displacement of rock strata has disturbed the arrangement of rocks and made it ... minerals (d) the terrain makes exploitation of minerals difficult and very costly due to transport difficulties

Last Answer : Ans: (b)

The Himalayan region is poor in mineral resources because: [IAS 2004] (a) it is made of crystalline rocks (b) the displacement of rock strata has disturbed the arrangement of rock and made it complex (c) the climatic conditions are not suitable for exploitation of minerals (d) the terrain makes exploitation of minerals difficult and very costly due to transport difficulties

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Last Answer : Ans: (b)

Which of the following is true regarding preparation of custom tray for elastomeric impression: a. Adhesive is preferred over perforation. b. Perforation provides adequate retention c. Adhesive is applied immediately before procedure d. Perforations are not made in the area over the prepared tooth .

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Last Answer : a. Adhesive is preferred over perforation.

A 7 years-old child has class I malocclusion, slight version of maxillary class III, adequate arch length. What is your management: A. Oral screen B. Head cap therapy C. Inclined plane on mandibular anterior teeth D. Hawley plate E. Expansion screw plate

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Last Answer : C. Inclined plane on mandibular anterior teeth

All of the following are requirements of mucoperiosteal flap except of: A. Base is wider than free margin B. Mucous membrane is carefully separated from periosteum C. Base has an adequate blood supply D. Flap wider than bony defect that will be present at conclusion of operation E. Mucoperiosteum is carefully separated from bone

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Last Answer : B. Mucous membrane is carefully separated from periosteum

Function of matrix band: A. Substitute for the missing wall so adequate condensation forces can be applied B. Permit re-establishment of proper contact lines C. Restrict extrusion of amalgam and prevent formation of an “overhang” D. Provide adequate physiological contour for the proximal surface E. Provide an acceptable surface texture to the proximal surface F. All of the above

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Last Answer : F. All of the above

All of the following are requirements of an adequate mucosal periosteal flap except:** A. Base is wider than the free margin B. Mucous membrane is carefully separated from periosteum C. Base containing blood supply

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Last Answer : B. Mucous membrane is carefully separated from periosteum 

.Which of the following is true regarding preparation of custom tray for elastomeric impression: A. Adhesive is preferred over perforation B. Perforation provides adequate retention C. Adhesive is applied immediately before procedure D. Perforations are not made in the area over the prepared tooth

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Last Answer : A. Adhesive is preferred over perforation

The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. the inter occlusal distance will be physiologically acceptable after treatment B. there will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. at least two third of the original alveolar process will remain for adequate periodontal support D. the aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction

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Last Answer : A. the inter occlusal distance will be physiologically acceptable after treatment

.For an onlay preparation, which of the following is the MOST EFFECTIVE means for verifying adequate occlusal clearance A. Wax bite chew in B. Proper depth cuts C. Visual inspection D. Articulating paper

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Last Answer : A. Wax bite chew in

The main factor controlling a decision to increase the occlusal height of teeth for extensive oral reconstruction is whether, A. The inter occlusal distance will be physiologically acceptable after treatment B. There will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns C. At least two third of the original alveolar process will remain for adequate periodontal support D. The aesthetic appearance of the patient will improve sufficiently to warrant the planned reconstruction

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Last Answer : A. The inter occlusal distance will be physiologically acceptable after treatment

To produce a stable correction of an upper labial segment in lingual crossbite; it is essential to:** A. Use fixed appliances B. Have adequate overbite C. Treat during growth D. Use posterior capping E. Increase vertical dimension

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Last Answer : B. Have adequate overbite

A 65 years-old woman arrived for dental therapy. The answered questionnaire shows that she is suffering from severe cirrhosis. The problem that can be anticipated in the routine dental therapy is: A. Extreme susceptibility to pain B. Tendency towards prolonged haemorrhage C. Recurring oral infection D. Increased tendency to syncope E. Difficulty in achieving adequate local anaesthesia

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Last Answer : B. Tendency towards prolonged haemorrhage

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Which of the following adverse reaction of oral contraceptives is the most common and the most serious A. Hypotension B. Hepatotoxicity C. Uterine neoplasia D. Thromboembolism disorder E. Decreased resistance to infection

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Commercial nitric acid is coloured because it contains dissolved – (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities

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Nitrous oxide, commonly called laughing gas, has been a matter of concern to environmentalists recently because: w) it is thought to cause cancer at low concentrations. x) it produces photochemical smog. y) it is a greenhouse gas. z) none of the above

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Commercial nitric acid is coloured because it contains dissolved : (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities

Description : Commercial nitric acid is coloured because it contains dissolved : (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities

Last Answer : Nitrogen dioxide