NBDHE Practice Test 5
10 free NBDHE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Question 1 of 10
Case Based ItemsPatient Case
| Field | Details |
|---|---|
| Patient | Male, 61 years |
| Chief Complaint | "A swelling keeps coming back on my gum by a lower right back tooth, and it tastes bad." |
| Background and/or Patient History | Type 2 diabetes for 12 years: metformin 1,000 mg twice daily and glipizide 10 mg every morning; most recent HbA1c 8.4% (3 weeks ago). Hypertension: lisinopril 20 mg daily. Hyperlipidemia: atorvastatin 40 mg daily. Last dental visit 2 years ago. |
| Allergies | |
| Social History | Never smoked. Drinks 1–2 beers on weekends. Retired electrician. |
| Current Findings | BP 134/84 mm Hg; pulse 80 bpm, regular. Pre-appointment glucometer reading 142 mg/dL. Oral hygiene: generalized moderate plaque; bleeding on probing at 35% of sites. Tooth 30 responds within normal limits to the dentist's cold test. |
| Tooth | Facial PD (D-F-M) | Lingual PD (D-L-M) | Recession F / L | BOP | Mobility | Furcation |
|---|---|---|---|---|---|---|
| 3 | 4-3-4 | 4-3-4 | 1 / 0 | D-M | 0 | — |
| 14 | 4-3-5 | 4-3-4 | 0 / 0 | M-F | 0 | — |
| 19 | 5-3-4 | 4-3-4 | 1 / 0 | D-F | 0 | — |
| 29 | 3-2-4 | 3-2-3 | 1 / 1 | — | 0 | — |
| 30 | 5-8-5 | 4-4-5 | 0 / 0 | D-F-M (pus at F), M | 1 | — |
| 31 | 4-3-4 | 4-3-4 | 0 / 0 | D | 0 | — |
| Tooth | Condition |
|---|---|
| 1, 16, 17, 32 | Missing |
| 30 | MO composite |
| 3, 14 | Occlusal amalgams |
| 19 | Porcelain-fused-to-metal crown |
Radiograph description (bitewings and periapicals): Tooth 30 — mesial bone crest 4 mm and distal crest 5 mm apical to the CEJ; a narrow radiolucency along the facial-mesial root surface toward the middle third; lamina dura continuous around both apices with normal PDL width at the apices. Generalized bone crests 3–4 mm apical to the CEJ. No proximal radiolucencies.
Clinical photograph description: A smooth, red, fluctuant swelling about 6 mm across on the attached gingiva at the facial of tooth 30, midway between the gingival margin and the mucogingival junction; pus is expressed from the facial sulcus with light pressure; no sinus tract opening; no partially erupted teeth in the area.
Which medication in the history carries the greatest risk of hypoglycemia during a long appointment?