Pharmacology - Comprehensive Mock Test 6

Question 51 Medium

Dexamphetamine produces an apparently paradoxical effect in

A) Addicts B) Athletes C) Parkinsonian patients D) Hyperkinetic children

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Question 52 Hard

Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger’s disease, because in this disease

A) Vasodilator β adrenoceptors are deficient B) There is loss of sympathetic innervation C) Blood flow to the affected limb is reduced by organic obstruction D) The drug is not delivered to the affected site

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Question 53 Medium

The most likely complication of prolonged use of nasal decongestant drops is

A) Atrophic rhinitis B) Hypertrophy of nasal mucosa C) Naso-pharyngeal moniliasis D) Blockage of eustachian tubes

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Question 54 Easy

Adrenaline injected with a local anaesthetic

A) Reduces local toxicity of the local anaesthetic B) Reduces systemic toxicity of the local anaesthetic C) Shortens duration of local anaesthesia D) Makes the injection less painful

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Question 55 Easy

Vasoconstrictors should not be used in

A) Neurogenic shock B) Haemorrhagic shock C) Secondary shock D) Hypotension due to spinal anaesthesia

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Question 56 Medium

The following is true of fenfluramine <u>except</u>

A) It lacks CNS stimulant action B) Its use has been associated with cardiac abnormalities and pulmonary hypertension C) It causes weight loss independent of reduced food intake D) It enhances serotonergic transmission in the brain

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Question 57 Hard

Which of the following drugs has been used both as orally active nasal decongestant as well as appetite suppressant, and has been implicated in precipitating haemorrhagic stroke

A) Dexfenfluramine B) Phenylpropanolamine C) Isoxsuprine D) Oxymetazoline

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Question 58 Hard

While undergoing a surgical procedure a patient develops hypotension. Which drug can be injected intramuscularly to raise his BP

A) Noradrenaline B) Isoprenaline C) Mephentermine D) Isoxsuprine

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Question 59 Easy

Phenylephrine instilled in the eye produces

A) Mydriasis but no cycloplegia B) Cycloplegia but no mydriasis C) Both mydriasis and cycloplegia D) Neither mydriasis nor cycloplegia

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Question 60 Medium

Which pressor agent acts directly as well as indirectly and produces both vasoconstriction and cardiac stimulation

A) Phenylephrine B) Methoxamine C) Noradrenaline D) Mephentermine

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