Study: Evaluating and Managing Cardiovascular Conditions |
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Section 1: i-Human Case Study: Cardiovascular History Taking & Risk
Assessment (Questions 1-15)
Q1: In the i-Human case study of a 58-year-old male presenting with chest discomfort,
the patient reports the pain occurs predictably when climbing two flights of stairs and is
relieved within 5 minutes of rest. Which component of the PQRST assessment best
characterizes this presentation?
A. Quality
B. Radiation
C. Provoking/Palliating factors [CORRECT]
D. Timing
Correct Answer: C
Rationale: Per ACC/AHA guidelines for stable ischemic heart disease, assessing
provoking factors (exertion) and palliating factors (rest) is the cornerstone of
characterizing typical angina pectoris. Distractors focus on other aspects of the history
that do not specifically define the exertional-rest relationship.
Q2: A patient in the i-Human simulation describes their chest pain as a "heavy pressure,
like an elephant sitting on my chest." This description is most highly suspicious for:
A. Gastroesophageal reflux disease (GERD)
B. Acute myocardial infarction or angina [CORRECT]
C. Musculoskeletal costochondritis
D. Pulmonary embolism
Correct Answer: B
Rationale: "Pressure," "squeezing," or "heaviness" are classic qualities of cardiac
ischemia, whereas GERD typically presents as a burning sensation, costochondritis as
a sharp, positional pain, and PE as a pleuritic pain. ACC/AHA guidelines emphasize this
quality as a red flag for ACS.
Q3: During the cardiovascular history taking in the i-Human platform, the patient reports
the substernal pressure radiates to the left jaw and left arm. What is the
pathophysiological significance of this radiation pattern?
A. It indicates an upper respiratory infection.
B. It suggests referred pain via visceral afferent fibers (T1-T4) shared with somatic
nerves. [CORRECT]
C. It localizes the lesion specifically to the right coronary artery.
,D. It rules out acute coronary syndrome as a diagnosis.
Correct Answer: B
Rationale: Cardiac ischemic pain frequently radiates to the medial left arm, jaw, or neck
due to shared neural pathways in the spinal cord (T1-T4 dermatomes) between the
heart and these somatic areas. Radiation does not rule out ACS but strongly supports it.
Q4: The i-Human patient complains of waking up abruptly 2 hours after falling asleep,
gasping for air, which is only relieved by sitting upright and dangling his legs over the
bed. How should the NP document this specific symptom?
A. Orthopnea
B. Paroxysmal nocturnal dyspnea (PND) [CORRECT]
C. Platypnea
D. Cheyne-Stokes respirations
Correct Answer: B
Rationale: PND is defined as sudden, severe dyspnea that awakens a patient from
sleep, usually 1-2 hours after onset, requiring them to sit upright to relieve symptoms.
Orthopnea is dyspnea occurring specifically when lying flat. PND is a classic marker of
severe left ventricular dysfunction per heart failure guidelines.
Q5: When assessing the i-Human patient's functional capacity, the nurse practitioner
notes they are comfortable at rest but experience dyspnea when walking more than one
block on level ground. According to the New York Heart Association (NYHA)
classification, this patient is categorized as:
A. Class I
B. Class II
C. Class III [CORRECT]
D. Class IV
Correct Answer: C
Rationale: NYHA Class III is defined as marked limitation of physical activity; patients
are comfortable at rest but less than ordinary activity (e.g., walking one block) causes
symptoms. Class II involves slight limitation (e.g., symptoms walking >2 blocks).
Q6: A 22-year-old patient in the i-Human case study reports a syncopal episode
preceded by lightheadedness, nausea, and sweating while having blood drawn, with a
rapid recovery upon lying supine. There was no postictal confusion. Which mechanism
is the primary driver of this syncope?
A. Cardiogenic syncope
B. Vasovagal (neurocardiogenic) syncope [CORRECT]
C. Orthostatic hypotension
D. Neurologic syncope (seizure)
Correct Answer: B
, Rationale: A clear triggers (pain/emotional distress), prodromal symptoms (nausea,
diaphoresis), and rapid recovery without postictal confusion are hallmark features of
vasovagal syncope, caused by a transient reflex bradycardia and vasodilation.
Q7: The i-Human patient presents with bilateral lower extremity edema. Upon palpation,
the NP notes a 4 mm indentation that takes 15 seconds to rebound. How is this edema
documented, and what is the most likely cardiovascular etiology?
A. Non-pitting edema; lymphatic obstruction
B. 2+ pitting edema; right-sided heart failure [CORRECT]
C. 3+ pitting edema; deep vein thrombosis
D. Brawny edema; venous insufficiency
Correct Answer: B
Rationale: A 4 mm indent that rebounds in 15 seconds is graded as 2+ pitting edema.
Bilateral lower extremity pitting edema is a classic sign of systemic fluid retention, most
commonly secondary to right-sided heart failure or pulmonary hypertension.
Q8: As part of the cardiovascular risk assessment in the i-Human case, the NP utilizes
the ASCVD (Atherosclerotic Cardiovascular Disease) risk calculator. Which variables
are required as inputs for this 10-year risk estimation?
A. Age, gender, race, total cholesterol, HDL, systolic BP, treatment for BP, diabetes,
smoking [CORRECT]
B. Family history of premature CAD, BMI, waist circumference, LDL, hs-CRP
C. ECG findings, echocardiogram ejection fraction, carotid intima-media thickness
D. Troponin levels, BNP, serum creatinine
Correct Answer: A
Rationale: The ACC/AHA Pooled Cohort Equations (ASCVD risk calculator) specifically
require these exact demographic and laboratory variables to estimate 10-year risk.
Family history, BMI, and biomarkers like hs-CRP are considered "risk-enhancing
factors" but are not part of the base calculator equation.
Q9: A 35-year-old patient in the i-Human simulation presents to the clinic with severe
chest pain, tachycardia, and hypertension. He admits to illicit drug use prior to symptom
onset. Which substance is most likely to cause coronary vasospasm and increased
myocardial oxygen demand leading to ACS?
A. Marijuana
B. Cocaine [CORRECT]
C. Opioids
D. Benzodiazepines
Correct Answer: B
Rationale: Cocaine use is a well-documented cause of acute coronary syndromes,
primarily through blocking norepinephrine reuptake (causing severe vasoconstriction