ORE Part 1 Medical Sciences

Question 1

A patient with a known cardiac murmur is scheduled for dental extraction. According to current NICE guidelines, what is the recommended antibiotic prophylaxis regimen?

Accepted Answer

No routine antibiotic prophylaxis is recommended

Answer

Amoxicillin 3g orally one hour before

Answer

Clindamycin 600mg orally one hour before

Answer

Azithromycin 500mg orally one hour before

Question 2

Which coagulation pathway is assessed by the prothrombin time (PT) and INR?

Accepted Answer

Extrinsic pathway

Answer

Intrinsic pathway

Answer

Common pathway only

Answer

Fibrinolytic pathway

Question 3

A diabetic patient becomes sweaty, confused, and tremulous during a dental appointment. What is the most appropriate immediate management?

Accepted Answer

Give oral glucose gel or a sugary drink if conscious

Answer

Administer intramuscular adrenaline

Answer

Place patient supine and wait

Answer

Administer sublingual GTN

Question 4

What is the correct dose of intramuscular adrenaline for an adult experiencing anaphylaxis in a dental surgery?

Accepted Answer

0.5ml of 1:1000 (0.5mg)

Answer

0.1ml of 1:1000 (0.1mg)

Answer

1ml of 1:10,000 (0.1mg)

Answer

1ml of 1:1000 (1mg)

Question 5

Which hepatitis virus is most commonly transmitted through needlestick injuries in the dental setting?

Accepted Answer

Hepatitis B

Answer

Hepatitis A

Answer

Hepatitis C

Answer

Hepatitis D

Question 6

A patient taking a selective serotonin reuptake inhibitor (SSRI) attends for dental treatment. Which drug interaction is most relevant in dentistry?

Accepted Answer

Increased bleeding risk due to impaired platelet function

Answer

Reduced efficacy of local anaesthetic

Answer

Hypertensive crisis with adrenaline-containing LA

Answer

Increased risk of cardiac arrhythmia