ADEX Dental Hygiene Patient Assessment and Diagnosis Questions and Answers — Questions and Answers
Question 1: A new patient presents with a chief complaint of 'a sore on the side of my tongue.' During the extraoral and intraoral examination, which of the following is the MOST critical first step in the diagnostic process?
- Palpating the regional lymph nodes for any signs of tenderness or enlargement.
- Taking a full mouth series of radiographs to identify any underlying pathology.
- Obtaining a detailed medical, dental, and social history, including tobacco and alcohol use. (Correct answer)
- Immediately performing a biopsy of the lesion to send for pathological analysis.
Correct answer: Obtaining a detailed medical, dental, and social history, including tobacco and alcohol use.
A comprehensive patient history is the foundation of the diagnostic process. It provides essential context that can reveal potential etiologies, risk factors (like tobacco/alcohol use for oral cancer), and systemic conditions influencing the oral findings before any physical examination or testing is performed. While other steps are important, the history guides the subsequent examination and development of a differential diagnosis.
Question 2: A 58-year-old male patient has a medical history of a heart attack six months ago, poorly controlled type 2 diabetes, and stable angina. According to the ASA Physical Status Classification System, how would this patient MOST likely be classified?
- ASA I
- ASA II
- ASA IV
- ASA III (Correct answer)
Correct answer: ASA III
The ASA III classification is for a patient with a severe systemic disease that limits activity but is not incapacitating. A history of a myocardial infarction more than three months prior, along with poorly controlled diabetes and stable angina, fits this description, indicating some functional limitation and a need for careful consideration during dental treatment. ASA IV is reserved for patients with a severe systemic disease that is a constant threat to life.
Question 3: During a periodontal assessment, a dental hygienist records a 6mm probing depth, 2mm of gingival recession, and class II furcation involvement on the facial aspect of tooth #30. What is the Clinical Attachment Loss (CAL) for this site?
- 4 mm
- 6 mm
- 8 mm (Correct answer)
- 2 mm
Correct answer: 8 mm
Clinical Attachment Loss (CAL) is calculated by adding the probing depth and the amount of gingival recession. In this scenario, the probing depth is 6 mm and the recession is 2 mm. Therefore, 6 mm + 2 mm = 8 mm of CAL. Furcation involvement is a critical finding but is not used in the calculation of CAL.
Question 4: Which of the following is considered the STRONGEST single predictor for future caries development in a patient?
- High frequency of sugar consumption.
- Poor oral hygiene with visible plaque.
- Socioeconomic status.
- Past caries experience. (Correct answer)
Correct answer: Past caries experience.
According to research and clinical guidelines, past caries experience is the strongest risk indicator for developing new carious lesions in the future. It demonstrates the patient's historical susceptibility to the disease by summarizing the collective effect of all other risk factors (like diet and hygiene) over their lifetime.
Question 5: A patient is in your chair for a routine prophylaxis. You review their health history and note they are a smoker and a social alcohol drinker, but have otherwise well-controlled prehypertension. All vital signs are within normal limits. Based on the ASA Physical Status Classification System, this patient represents a:
- Green flag for treatment (ASA I)
- Red flag, requiring immediate medical consult (ASA IV)
- Yellow flag, proceed with caution (ASA II) (Correct answer)
- Yellow flag, but requires significant treatment modification (ASA III)
Correct answer: Yellow flag, proceed with caution (ASA II)
An ASA II classification is for a patient with mild systemic disease or significant health risk factors like smoking, social alcohol use, or well-controlled prehypertension. This represents a 'yellow flag,' indicating that the hygienist should proceed with caution but that major modifications to the treatment plan are not typically necessary for a routine procedure.
Question 6: The comprehensive patient assessment performed by a dental hygienist includes an extraoral examination. The primary purpose of palpating the temporomandibular joint (TMJ) is to detect:
- Salivary gland blockages.
- Signs of bruxism or clenching.
- Deviations, clicking, popping, or tenderness. (Correct answer)
- Enlarged or tender lymph nodes.
Correct answer: Deviations, clicking, popping, or tenderness.
The extraoral examination includes assessing the head, neck, and related structures. Specifically, the palpation of the TMJ as the patient opens, closes, and moves their jaw from side to side is done to identify any abnormalities in function, such as deviations in movement, sounds like clicking or popping (crepitus), and any patient-reported tenderness or pain, which could indicate temporomandibular dysfunction (TMD).
ADEX Dental Hygiene Patient Assessment and Diagnosis Questions and Answers
A new patient presents with a chief complaint of 'a sore on the side of my tongue.' During the extraoral and intraoral examination, which of the following is the MOST critical first step in the diagnostic process?