DAANCE Patient Assessment and Preparation 2

Question 1

During pre-sedation airway assessment using the Mallampati classification, a Class IV finding indicates:

Accepted Answer

No visibility of the soft palate - hardest class, predicting difficult intubation

Answer

Excellent visualization: soft palate, uvula, fauces, and pillars all visible

Answer

Moderate difficulty: soft palate and uvula visible but pillars obscured

Answer

Difficult airway: only the soft palate base visible

Question 2

Which preoperative laboratory value is MOST important to check in a patient with a history of heavy alcohol use before IV sedation?

Accepted Answer

Prothrombin time/INR and liver function tests

Answer

Serum potassium level

Answer

Fasting blood glucose level

Answer

Serum creatinine and BUN

Question 3

A patient blood pressure before sedation is 148/92 mmHg. According to AHA classification this is:

Accepted Answer

Stage 1 hypertension

Answer

Normal blood pressure

Answer

Elevated blood pressure

Answer

Stage 2 hypertension

Question 4

Before administering IV sedation to a patient who takes clopidogrel (Plavix), the dental team should be aware that this drug:

Accepted Answer

Inhibits ADP-mediated platelet aggregation, increasing bleeding risk

Answer

Causes sedative potentiation requiring reduced midazolam doses

Answer

Prolongs QT interval and may cause cardiac dysrhythmias during sedation

Answer

Induces hepatic CYP3A4 enzymes, reducing benzodiazepine effect

Question 5

A consent discussion for IV sedation should include all of the following EXCEPT:

Accepted Answer

A guarantee of complete amnesia during the procedure

Answer

Risks of IV sedation including respiratory depression

Answer

Alternative approaches such as nitrous oxide or oral sedation

Answer

What to expect after the procedure including discharge criteria

Question 6

A thyroid storm can be precipitated during dental sedation in a patient with uncontrolled hyperthyroidism by which common dental agent?

Accepted Answer

Epinephrine in local anesthetic

Answer

Midazolam

Answer

Nitrous oxide

Answer

Lidocaine without vasoconstrictor