1|Page
Comprehensive i-Human Virtual Patient Case -
Evaluation and Evidence-Based Management Newest
Exam Preparation With Complete Questions And
Correct Answers With Rationales Already Graded
A+Brand New Version!!
1. A 55-year-old male with a BMI of 30.5 presents with fatigue and
polydipsia. Which initial laboratory test is most appropriate to evaluate
for diabetes mellitus?
A) Hemoglobin A1c
B) Fasting plasma glucose
C) Oral glucose tolerance test
D) Random plasma glucose
Answer: B) Fasting plasma glucose
Explanation: The fasting plasma glucose (FPG) is the preferred initial
screening test for diabetes mellitus due to its convenience, low cost, and
established diagnostic criteria. An FPG ≥126 mg/dL on two separate
occasions confirms the diagnosis. While hemoglobin A1c is also
diagnostic, FPG is typically ordered first in the outpatient setting.
,2|Page
2. In the i-Human virtual patient platform, which component of the
clinical reasoning process is assessed first?
A) Physical examination
B) Differential diagnosis
C) History taking
D) Diagnostic testing
Answer: C) History taking
Explanation: The i-Human platform simulates a complete patient
encounter beginning with history taking, as this is the foundational step
in clinical reasoning. A thorough history provides approximately 80% of
the diagnostic information and guides subsequent physical examination
and testing decisions.
3. A 45-year-old female presents with a 3-week history of worsening
fatigue. Which element of the history is most critical to characterize
first?
A) Onset and duration of fatigue
B) Quality and severity of fatigue
C) Associated symptoms
D) Aggravating and alleviating factors
Answer: C) Associated symptoms
,3|Page
Explanation: Characterizing associated symptoms is critical because
they provide clues to the underlying etiology. Fatigue associated with
weight loss, fever, or night sweats suggests a systemic inflammatory or
malignant process, whereas fatigue with exertional dyspnea may
indicate anemia or cardiopulmonary disease.
4. Which of the following is the most appropriate next step when a
patient's differential diagnosis includes both community-acquired
pneumonia and heart failure?
A) Order chest radiograph
B) Prescribe empiric antibiotics
C) Administer diuretics
D) Obtain arterial blood gas
Answer: A) Order chest radiograph
Explanation: A chest radiograph is essential to differentiate between
pneumonia (which would show an infiltrate) and heart failure (which
would show pulmonary vascular congestion, cardiomegaly, and possibly
pleural effusions). Empiric treatment without diagnostic confirmation is
inappropriate.
5. In evidence-based medicine, which study design provides the highest
level of evidence for therapeutic interventions?
A) Case-control study
B) Cohort study
, 4|Page
C) Systematic review and meta-analysis of randomized controlled trials
D) Case series
Answer: C) Systematic review and meta-analysis of randomized
controlled trials
Explanation: Systematic reviews and meta-analyses of RCTs represent
the highest level of evidence in the evidence-based medicine hierarchy
because they aggregate data from multiple high-quality studies,
increasing statistical power and providing the most reliable estimates of
treatment effects.
6. A 67-year-old female presents with acute shortness of breath. Which
vital sign finding is most concerning for impending respiratory failure?
A) Respiratory rate of 22 breaths per minute
B) Oxygen saturation of 91% on room air
C) Heart rate of 95 beats per minute
D) Blood pressure of 145/88 mmHg
Answer: B) Oxygen saturation of 91% on room air
Explanation: An oxygen saturation of 91% on room air indicates
hypoxemia and is concerning for impending respiratory failure. Normal
saturation is 95-100%. A respiratory rate of 22 is mildly elevated but not
immediately concerning, and the heart rate and blood pressure are
within acceptable ranges.
Comprehensive i-Human Virtual Patient Case -
Evaluation and Evidence-Based Management Newest
Exam Preparation With Complete Questions And
Correct Answers With Rationales Already Graded
A+Brand New Version!!
1. A 55-year-old male with a BMI of 30.5 presents with fatigue and
polydipsia. Which initial laboratory test is most appropriate to evaluate
for diabetes mellitus?
A) Hemoglobin A1c
B) Fasting plasma glucose
C) Oral glucose tolerance test
D) Random plasma glucose
Answer: B) Fasting plasma glucose
Explanation: The fasting plasma glucose (FPG) is the preferred initial
screening test for diabetes mellitus due to its convenience, low cost, and
established diagnostic criteria. An FPG ≥126 mg/dL on two separate
occasions confirms the diagnosis. While hemoglobin A1c is also
diagnostic, FPG is typically ordered first in the outpatient setting.
,2|Page
2. In the i-Human virtual patient platform, which component of the
clinical reasoning process is assessed first?
A) Physical examination
B) Differential diagnosis
C) History taking
D) Diagnostic testing
Answer: C) History taking
Explanation: The i-Human platform simulates a complete patient
encounter beginning with history taking, as this is the foundational step
in clinical reasoning. A thorough history provides approximately 80% of
the diagnostic information and guides subsequent physical examination
and testing decisions.
3. A 45-year-old female presents with a 3-week history of worsening
fatigue. Which element of the history is most critical to characterize
first?
A) Onset and duration of fatigue
B) Quality and severity of fatigue
C) Associated symptoms
D) Aggravating and alleviating factors
Answer: C) Associated symptoms
,3|Page
Explanation: Characterizing associated symptoms is critical because
they provide clues to the underlying etiology. Fatigue associated with
weight loss, fever, or night sweats suggests a systemic inflammatory or
malignant process, whereas fatigue with exertional dyspnea may
indicate anemia or cardiopulmonary disease.
4. Which of the following is the most appropriate next step when a
patient's differential diagnosis includes both community-acquired
pneumonia and heart failure?
A) Order chest radiograph
B) Prescribe empiric antibiotics
C) Administer diuretics
D) Obtain arterial blood gas
Answer: A) Order chest radiograph
Explanation: A chest radiograph is essential to differentiate between
pneumonia (which would show an infiltrate) and heart failure (which
would show pulmonary vascular congestion, cardiomegaly, and possibly
pleural effusions). Empiric treatment without diagnostic confirmation is
inappropriate.
5. In evidence-based medicine, which study design provides the highest
level of evidence for therapeutic interventions?
A) Case-control study
B) Cohort study
, 4|Page
C) Systematic review and meta-analysis of randomized controlled trials
D) Case series
Answer: C) Systematic review and meta-analysis of randomized
controlled trials
Explanation: Systematic reviews and meta-analyses of RCTs represent
the highest level of evidence in the evidence-based medicine hierarchy
because they aggregate data from multiple high-quality studies,
increasing statistical power and providing the most reliable estimates of
treatment effects.
6. A 67-year-old female presents with acute shortness of breath. Which
vital sign finding is most concerning for impending respiratory failure?
A) Respiratory rate of 22 breaths per minute
B) Oxygen saturation of 91% on room air
C) Heart rate of 95 beats per minute
D) Blood pressure of 145/88 mmHg
Answer: B) Oxygen saturation of 91% on room air
Explanation: An oxygen saturation of 91% on room air indicates
hypoxemia and is concerning for impending respiratory failure. Normal
saturation is 95-100%. A respiratory rate of 22 is mildly elevated but not
immediately concerning, and the heart rate and blood pressure are
within acceptable ranges.
