Maximum Safe Doses Practice Questions

Question 1

Regarding malignant hyperthermia, which statement about local anesthetics is correct?

Accepted Answer

Local anesthetics are safe to use in malignant hyperthermia-susceptible patients

Answer

Amide local anesthetics can trigger malignant hyperthermia

Answer

Ester local anesthetics are contraindicated in malignant hyperthermia

Answer

Local anesthetics should be avoided in patients with family history of malignant hyperthermia

Question 2

A patient presented with rigidity, tremors, and trismus after being administered an anesthetic agent. Which anesthetic agent is most likely to have been administered?

Accepted Answer

Halothane

Answer

Nitrous Oxide (N2O)

Answer

Thiopentone sodium

Answer

Etomidate

Question 3

Which of the following local anesthetics has the highest maximum concentration allowed for epidural block?

Accepted Answer

Chlorprocaine

Answer

Lidocaine

Answer

Ropivacaine

Answer

Bupivacaine

Question 4

Which local anesthetic has the highest protein binding capacity?

Accepted Answer

Tetracaine

Answer

Procaine

Answer

Lidocaine

Answer

Prilocaine

Question 5

A young male was administered regional anesthesia with 0.25% bupivacaine. The patient became unresponsive, and the pulse became unrecordable. What is the best management in this situation?

Accepted Answer

ECPR with 20% intralipid

Answer

ECPR with calcium

Answer

ECPR with dobutamine

Answer

ECPR with sodium bicarbonate

Question 6

What is the maximum dose of plain lignocaine (in mg) for adults?

Accepted Answer

300

Answer

500

Answer

700

Answer

1000

Question 7

Which is correct about the anesthetic drugs X and Y in the image shown? (Recent NEET Pattern 2016-17)

Accepted Answer

Drug X is more fast acting than Y

Answer

Drug X and Y have equally fast onset of action

Answer

Drug X and Y have equally fast onset of action but potency of X is more than Y

Answer

Drug Y is more fast acting than X

Question 8

True regarding EMLA is

Accepted Answer

Its mixture of 25 mg/g Lidocaine + 25 mg/g prilocaine used for skin anaesthesia

Answer

used for bilateral nerve block

Answer

used as general anaesthesia in pediatric use

Answer

None of the above

Question 9

Which of the following anesthetic agents does not trigger malignant hyperthermia?

Accepted Answer

Thiopentone

Answer

Isoflurane

Answer

Suxamethonium

Answer

Halothane

Question 10

The maximum dosage of a local anesthetic agent like lidocaine must be reduced when it is used in combination with a CNS and/or respiratory depressant because, it may result in?

Accepted Answer

All of the above

Answer

Seizures

Answer

Coma

Answer

Death

Maximum Safe Doses — MCQs

Maximum Safe Doses — MCQs

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