MCQs

Medical MCQs with Explanations

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3161MedicalMedium

Which of the following is an example of a composite material?

AWax

BColloidal silica

CA filled resin

DGold alloy

Correct answer

C. A filled resin

Explanation

The correct answer is A filled resin.

3162MedicalMedium

The microhardness of dentin is about________?

A1/5 that of enamel

B1/2 that of enamel

C1/4 that of enamel

D1/7 that of enamel

Correct answer

C. 1/4 that of enamel

Explanation

The correct answer is 1/4 that of enamel.

3163MedicalMedium

This drug reduces blood pressure by acting on vasomotor centers in the CNS:

AEnalapril

BClonidine

CNifedipine

DLabetalol

Correct answer

B. Clonidine

Explanation

The correct answer is Clonidine.

3164MedicalMedium

Anti-convulsants frequently used in management of trigeminal neuralgia are________?

AAll of the above

BPhenytoin

CGabapentin

DBaclofen

Correct answer

A. All of the above

Explanation

The correct answer is All of the above.

3165MedicalMedium

Maximum fluoride content is seen in________?

ADental cementum

BEnamel

CDental pulp

DDentin

Correct answer

A. Dental cementum

Explanation

The correct answer is Dental cementum.

3166MedicalMedium

Transport form of iron is________?

ALactoferrin

BTransferrin

CFerritin

DApoferritin

Correct answer

B. Transferrin

Explanation

The correct answer is Transferrin.

3167MedicalMedium

While performing a procedure, a resident doctor injures herself with a suture needle that has been used to stitch a patient with HIV infection for 11 years. He has been complaint with therapy for several years and has recently changed tablets because of alteration in his appearance. His last CD4 count was 360 cells/mm. The doctor is offered post exposure prophylaxis. Which regimen should she take?

AZiduvidine and Lamivudine and Indivair

BZiduvidine and Lamivudine and Stavudine

CZiduvidine and Lamivudine and Abacavir

DZiduvidine and Lamivudine

Correct answer

A. Ziduvidine and Lamivudine and Indivair

Explanation

The correct answer is Ziduvidine and Lamivudine and Indivair.

3168MedicalMedium

All of the following drugs are components of the MOPP cancer Chemotherapy regimen EXCEPT________?

AVincristine

BProcarbazine

CMethotrexate

DMechlorethamine

Correct answer

C. Methotrexate

Explanation

The correct answer is Methotrexate.

3169MedicalMedium

The metabolic effects of sympathomimetics are mediated by________?

ADopaminergic receptors

BBeta 2 receptors

CAll beta-adrenergic receptors

DOpioid receptors

Correct answer

C. All beta-adrenergic receptors

Explanation

The correct answer is All beta-adrenergic receptors.

3170MedicalMedium

Which one of the following categories of dental materials has the highest thermal conductivity________?

AZinc phosphate cements

BPorcelains

CUnfilled acrylic plastics

DGold alloys

Correct answer

D. Gold alloys

Explanation

The correct answer is Gold alloys.

3161MedicalMedium

Which of the following is an example of a composite material?

AWax

BColloidal silica

CA filled resin

DGold alloy

Correct answer

C. A filled resin

Explanation

The correct answer is A filled resin.

3162MedicalMedium

The microhardness of dentin is about________?

A1/5 that of enamel

B1/2 that of enamel

C1/4 that of enamel

D1/7 that of enamel

Correct answer

C. 1/4 that of enamel

Explanation

The correct answer is 1/4 that of enamel.

3163MedicalMedium

This drug reduces blood pressure by acting on vasomotor centers in the CNS:

AEnalapril

BClonidine

CNifedipine

DLabetalol

Correct answer

B. Clonidine

Explanation

The correct answer is Clonidine.

3164MedicalMedium

Anti-convulsants frequently used in management of trigeminal neuralgia are________?

AAll of the above

BPhenytoin

CGabapentin

DBaclofen

Correct answer

A. All of the above

Explanation

The correct answer is All of the above.

3165MedicalMedium

Maximum fluoride content is seen in________?

ADental cementum

BEnamel

CDental pulp

DDentin

Correct answer

A. Dental cementum

Explanation

The correct answer is Dental cementum.

3166MedicalMedium

Transport form of iron is________?

ALactoferrin

BTransferrin

CFerritin

DApoferritin

Correct answer

B. Transferrin

Explanation

The correct answer is Transferrin.

3167MedicalMedium

While performing a procedure, a resident doctor injures herself with a suture needle that has been used to stitch a patient with HIV infection for 11 years. He has been complaint with therapy for several years and has recently changed tablets because of alteration in his appearance. His last CD4 count was 360 cells/mm. The doctor is offered post exposure prophylaxis. Which regimen should she take?

AZiduvidine and Lamivudine and Indivair

BZiduvidine and Lamivudine and Stavudine

CZiduvidine and Lamivudine and Abacavir

DZiduvidine and Lamivudine

Correct answer

A. Ziduvidine and Lamivudine and Indivair

Explanation

The correct answer is Ziduvidine and Lamivudine and Indivair.

3168MedicalMedium

All of the following drugs are components of the MOPP cancer Chemotherapy regimen EXCEPT________?

AVincristine

BProcarbazine

CMethotrexate

DMechlorethamine

Correct answer

C. Methotrexate

Explanation

The correct answer is Methotrexate.

3169MedicalMedium

The metabolic effects of sympathomimetics are mediated by________?

ADopaminergic receptors

BBeta 2 receptors

CAll beta-adrenergic receptors

DOpioid receptors

Correct answer

C. All beta-adrenergic receptors

Explanation

The correct answer is All beta-adrenergic receptors.

3170MedicalMedium

Which one of the following categories of dental materials has the highest thermal conductivity________?

AZinc phosphate cements

BPorcelains

CUnfilled acrylic plastics

DGold alloys

Correct answer

D. Gold alloys

Explanation

The correct answer is Gold alloys.