BENJAMIN CAVILL I-HUMAN CASE STUDY EXAM 320
ACTUAL QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE ALREADY GRADED A+
1. A 65-year-old male presents with a one-month history of progressive fatigue,
polyuria, nocturia, polydipsia, polyphagia, and unexplained weight gain. His
fasting blood glucose is 230 mg/dL and HbA1c is 8.5%. What is the most likely
primary diagnosis?
A) Type 1 Diabetes Mellitus
B) Type 2 Diabetes Mellitus
C) Hyperthyroidism
D) Cushing Syndrome
Answer: B
Rationale: The patient meets the diagnostic criteria for Type 2 Diabetes Mellitus
based on ADA guidelines, which include an HbA1c ≥6.5% and fasting blood
glucose ≥126 mg/dL. The classic symptoms of hyperglycemia (polyuria,
polydipsia, polyphagia, fatigue, and weight gain) further support this diagnosis.
Type 1 diabetes typically presents with acute onset in younger patients, while
hyperthyroidism and Cushing syndrome have different symptom profiles .
2. Which of the following is a classic symptom of hyperglycemia in Type 2
Diabetes Mellitus?
A) Bradycardia
B) Polyuria and polydipsia
C) Hypotension
D) Weight loss without polyphagia
Answer: B
Rationale: Polyuria (excessive urination) and polydipsia (excessive thirst) are
hallmark symptoms of hyperglycemia. When blood glucose exceeds the renal
threshold (approximately 180 mg/dL), glucose spills into the urine, causing
osmotic diuresis, which leads to polyuria and subsequent polydipsia. Hypovolemia
from fluid loss can also occur if the patient does not adequately replace fluids .
,3. When performing the sensory component of the CN V (Trigeminal) test, the
examiner should:
A) Instruct the patient to clench their teeth against resistance
B) Use a light wisp of cotton over the three nerve distributions bilaterally with eyes
closed
C) Have the patient follow a pen with their eyes
D) Ask the patient to shrug their shoulders against resistance
Answer: B
Rationale: The trigeminal nerve (CN V) sensory testing is performed by using a
light wisp of cotton to touch the three branches of the nerve (ophthalmic,
maxillary, and mandibular) bilaterally. The patient is instructed to close their eyes
and say "now" when they feel the touch. The motor component involves clenching
teeth and testing the masseter muscles .
4. What is the correct positioning and action for testing the motor function of CN
V (Trigeminal)?
A) Place hands on the patient's cheeks and temples and instruct them to clench
their teeth against resistance
B) Have the patient stick out their tongue and move it from side to side
C) Ask the patient to smile and puff out their cheeks
D) Have the patient follow a pen with their eyes without moving their head
Answer: A
Rationale: To test the motor function of the trigeminal nerve, the examiner places
their hands on the patient's cheeks and temples (over the masseter and temporalis
muscles). The patient is instructed to clench their teeth while the examiner tests
strength by pushing down on the mandible against resistance .
5. During the CN II and III (Optic and Oculomotor) test, what should the examiner
observe?
A) The patient's ability to follow a pen in six cardinal fields of gaze
B) Corneal clarity, pupillary size and shape, and direct and consensual pupillary
reflexes
C) The patient's ability to hear whispered words
D) The presence of nystagmus and conjugate gaze
Answer: B
Rationale: The CN II (optic) and CN III (oculomotor) test involves inspecting the
eyes with a pen light to observe pupillary response. The examiner should comment
on corneal clarity, pupillary size and shape, and the presence of direct, consensual,
and afferent pupillary reflexes (accommodation). The swinging light test is also
performed to assess for an afferent pupillary defect .
,6. How is the whisper test (CN VIII - Acoustic/Vestibulocochlear) performed
correctly?
A) Instruct the patient to occlude one ear and whisper a two-syllable word from
behind
B) Instruct the patient to follow a pen with their eyes
C) Use a tuning fork and place it on the patient's forehead
D) Ask the patient to repeat a sentence spoken at normal volume
Answer: A
Rationale: The whisper test is a screening test for hearing. The patient is instructed
to occlude one ear. The examiner stands behind the patient and whispers a two-
syllable word. The patient is then asked to repeat the whispered word. This tests
the function of the acoustic/vestibulocochlear nerve (CN VIII) .
7. What aspect of the tympanic membrane should be commented on during an
otoscopic examination?
A) Cerumen and patency
B) Color, transparency, contour, light reflex, and perforations
C) Edema and tenderness
D) Deformities and lesions
Answer: B
Rationale: When inspecting the tympanic membrane with an otoscope, the
examiner should comment on the membrane's color, transparency, contour (shape),
the presence or absence of a light reflex, and any perforations. Cerumen and
patency are assessed when inspecting the auditory canal, not the tympanic
membrane itself .
8. To test the function of CN XII (Hypoglossal), the examiner should:
A) Ask the patient to say "ahh" and observe the rise of the palatal arch
B) Have the patient stick out their tongue and move it toward their nose and chin
C) Have the patient shrug their shoulders against downward pressure
D) Instruct the patient to follow a pen with their eyes
Answer: B
Rationale: To test the hypoglossal nerve (CN XII), the examiner asks the patient to
stick out their tongue and then move it toward their nose and chin. The examiner
should comment on the symmetry and position of the tongue, the presence of any
tremors, and the patient's ability to move the tongue. Deviation of the tongue
toward the side of the lesion is a key finding .
, 9. During the examination of the neck, the examiner notes a large neck
circumference and a history of heavy snoring in a patient with obesity. This is a
significant finding because:
A) It indicates a high risk for obstructive sleep apnea
B) It is a normal finding in elderly patients
C) It suggests thyroid disease
D) It is related to benign prostatic hyperplasia
Answer: A
Rationale: A large neck circumference, especially when combined with obesity and
heavy snoring, is a significant risk factor for obstructive sleep apnea. The excess
fat deposition in the neck area can narrow the upper airway, predisposing to airway
collapse during sleep. This is a relevant comorbidity in patients with Type 2
Diabetes Mellitus .
10. In the Benjamin Cavill case, the patient's elevated blood pressure and obesity
are significant because:
A) They are typical findings in all elderly patients
B) They are independent risk factors for Type 2 Diabetes Mellitus and
cardiovascular disease
C) They are solely related to the patient's diet and can be ignored
D) They indicate that the patient is noncompliant with medication
Answer: B
Rationale: Hypertension and obesity are significant independent risk factors for the
development of Type 2 Diabetes Mellitus and are also major contributors to
cardiovascular disease. Central adiposity (abdominal obesity) is a particularly
strong risk factor for insulin resistance and subsequent development of diabetes .
11. Which of the following is an appropriate differential diagnosis for a patient
presenting with fatigue, weight gain, and hyperglycemia?
A) Cushing Syndrome
B) Hyperthyroidism
C) Type 1 Diabetes Mellitus
D) Addison's Disease
Answer: A
Rationale: Cushing Syndrome is a valid differential diagnosis for a patient with
weight gain, fatigue, and hyperglycemia. Cushing syndrome is characterized by
chronic exposure to excess glucocorticoids, leading to central obesity,
hypertension, and insulin resistance. While Type 2 DM is the most likely
diagnosis, Cushing syndrome should be considered in the differential, especially
ACTUAL QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE ALREADY GRADED A+
1. A 65-year-old male presents with a one-month history of progressive fatigue,
polyuria, nocturia, polydipsia, polyphagia, and unexplained weight gain. His
fasting blood glucose is 230 mg/dL and HbA1c is 8.5%. What is the most likely
primary diagnosis?
A) Type 1 Diabetes Mellitus
B) Type 2 Diabetes Mellitus
C) Hyperthyroidism
D) Cushing Syndrome
Answer: B
Rationale: The patient meets the diagnostic criteria for Type 2 Diabetes Mellitus
based on ADA guidelines, which include an HbA1c ≥6.5% and fasting blood
glucose ≥126 mg/dL. The classic symptoms of hyperglycemia (polyuria,
polydipsia, polyphagia, fatigue, and weight gain) further support this diagnosis.
Type 1 diabetes typically presents with acute onset in younger patients, while
hyperthyroidism and Cushing syndrome have different symptom profiles .
2. Which of the following is a classic symptom of hyperglycemia in Type 2
Diabetes Mellitus?
A) Bradycardia
B) Polyuria and polydipsia
C) Hypotension
D) Weight loss without polyphagia
Answer: B
Rationale: Polyuria (excessive urination) and polydipsia (excessive thirst) are
hallmark symptoms of hyperglycemia. When blood glucose exceeds the renal
threshold (approximately 180 mg/dL), glucose spills into the urine, causing
osmotic diuresis, which leads to polyuria and subsequent polydipsia. Hypovolemia
from fluid loss can also occur if the patient does not adequately replace fluids .
,3. When performing the sensory component of the CN V (Trigeminal) test, the
examiner should:
A) Instruct the patient to clench their teeth against resistance
B) Use a light wisp of cotton over the three nerve distributions bilaterally with eyes
closed
C) Have the patient follow a pen with their eyes
D) Ask the patient to shrug their shoulders against resistance
Answer: B
Rationale: The trigeminal nerve (CN V) sensory testing is performed by using a
light wisp of cotton to touch the three branches of the nerve (ophthalmic,
maxillary, and mandibular) bilaterally. The patient is instructed to close their eyes
and say "now" when they feel the touch. The motor component involves clenching
teeth and testing the masseter muscles .
4. What is the correct positioning and action for testing the motor function of CN
V (Trigeminal)?
A) Place hands on the patient's cheeks and temples and instruct them to clench
their teeth against resistance
B) Have the patient stick out their tongue and move it from side to side
C) Ask the patient to smile and puff out their cheeks
D) Have the patient follow a pen with their eyes without moving their head
Answer: A
Rationale: To test the motor function of the trigeminal nerve, the examiner places
their hands on the patient's cheeks and temples (over the masseter and temporalis
muscles). The patient is instructed to clench their teeth while the examiner tests
strength by pushing down on the mandible against resistance .
5. During the CN II and III (Optic and Oculomotor) test, what should the examiner
observe?
A) The patient's ability to follow a pen in six cardinal fields of gaze
B) Corneal clarity, pupillary size and shape, and direct and consensual pupillary
reflexes
C) The patient's ability to hear whispered words
D) The presence of nystagmus and conjugate gaze
Answer: B
Rationale: The CN II (optic) and CN III (oculomotor) test involves inspecting the
eyes with a pen light to observe pupillary response. The examiner should comment
on corneal clarity, pupillary size and shape, and the presence of direct, consensual,
and afferent pupillary reflexes (accommodation). The swinging light test is also
performed to assess for an afferent pupillary defect .
,6. How is the whisper test (CN VIII - Acoustic/Vestibulocochlear) performed
correctly?
A) Instruct the patient to occlude one ear and whisper a two-syllable word from
behind
B) Instruct the patient to follow a pen with their eyes
C) Use a tuning fork and place it on the patient's forehead
D) Ask the patient to repeat a sentence spoken at normal volume
Answer: A
Rationale: The whisper test is a screening test for hearing. The patient is instructed
to occlude one ear. The examiner stands behind the patient and whispers a two-
syllable word. The patient is then asked to repeat the whispered word. This tests
the function of the acoustic/vestibulocochlear nerve (CN VIII) .
7. What aspect of the tympanic membrane should be commented on during an
otoscopic examination?
A) Cerumen and patency
B) Color, transparency, contour, light reflex, and perforations
C) Edema and tenderness
D) Deformities and lesions
Answer: B
Rationale: When inspecting the tympanic membrane with an otoscope, the
examiner should comment on the membrane's color, transparency, contour (shape),
the presence or absence of a light reflex, and any perforations. Cerumen and
patency are assessed when inspecting the auditory canal, not the tympanic
membrane itself .
8. To test the function of CN XII (Hypoglossal), the examiner should:
A) Ask the patient to say "ahh" and observe the rise of the palatal arch
B) Have the patient stick out their tongue and move it toward their nose and chin
C) Have the patient shrug their shoulders against downward pressure
D) Instruct the patient to follow a pen with their eyes
Answer: B
Rationale: To test the hypoglossal nerve (CN XII), the examiner asks the patient to
stick out their tongue and then move it toward their nose and chin. The examiner
should comment on the symmetry and position of the tongue, the presence of any
tremors, and the patient's ability to move the tongue. Deviation of the tongue
toward the side of the lesion is a key finding .
, 9. During the examination of the neck, the examiner notes a large neck
circumference and a history of heavy snoring in a patient with obesity. This is a
significant finding because:
A) It indicates a high risk for obstructive sleep apnea
B) It is a normal finding in elderly patients
C) It suggests thyroid disease
D) It is related to benign prostatic hyperplasia
Answer: A
Rationale: A large neck circumference, especially when combined with obesity and
heavy snoring, is a significant risk factor for obstructive sleep apnea. The excess
fat deposition in the neck area can narrow the upper airway, predisposing to airway
collapse during sleep. This is a relevant comorbidity in patients with Type 2
Diabetes Mellitus .
10. In the Benjamin Cavill case, the patient's elevated blood pressure and obesity
are significant because:
A) They are typical findings in all elderly patients
B) They are independent risk factors for Type 2 Diabetes Mellitus and
cardiovascular disease
C) They are solely related to the patient's diet and can be ignored
D) They indicate that the patient is noncompliant with medication
Answer: B
Rationale: Hypertension and obesity are significant independent risk factors for the
development of Type 2 Diabetes Mellitus and are also major contributors to
cardiovascular disease. Central adiposity (abdominal obesity) is a particularly
strong risk factor for insulin resistance and subsequent development of diabetes .
11. Which of the following is an appropriate differential diagnosis for a patient
presenting with fatigue, weight gain, and hyperglycemia?
A) Cushing Syndrome
B) Hyperthyroidism
C) Type 1 Diabetes Mellitus
D) Addison's Disease
Answer: A
Rationale: Cushing Syndrome is a valid differential diagnosis for a patient with
weight gain, fatigue, and hyperglycemia. Cushing syndrome is characterized by
chronic exposure to excess glucocorticoids, leading to central obesity,
hypertension, and insulin resistance. While Type 2 DM is the most likely
diagnosis, Cushing syndrome should be considered in the differential, especially
