AANP-Aligned | Verified Rationales | Primary Care | Pass
Guaranteed - A+ Graded
Domain: Assessment & Diagnosis (45 Questions)
Q1: A 28-year-old woman presents with dysuria, frequency, and urgency for 2 days.
Urinalysis shows 10-25 WBC/hpf, positive leukocyte esterase, and negative nitrites.
Which finding is most consistent with acute uncomplicated cystitis?
A. Urine culture showing >100,000 CFU/mL of Escherichia coli
B. Presence of vaginal discharge and pruritus
C. Fever of 101.2°F (38.4°C) and costovertebral angle tenderness
D. Urine culture showing >1,000 CFU/mL of Streptococcus agalactiae (Group B Strep)
[CORRECT]
Correct Answer: D
Rationale: Acute uncomplicated cystitis in a young, non-pregnant woman is diagnosed
clinically based on symptoms and pyuria (positive leukocyte esterase or >10 WBC/hpf).
Nitrites are often negative because not all uropathogens reduce nitrates to nitrites (e.g.,
Enterococcus, Streptococcus, Staphylococcus). Streptococcus agalactiae (Group B Strep)
at >1,000 CFU/mL in a symptomatic woman is considered significant and consistent
with cystitis. Option A is incorrect because urine cultures are not routinely indicated for
uncomplicated cystitis per IDSA guidelines; when obtained, >100,000 CFU/mL is the
traditional threshold, but lower counts with symptoms are significant. Option B
,suggests vaginitis, not UTI. Option C describes pyelonephritis, not uncomplicated
cystitis. The absence of nitrites does not rule out UTI.
Q2: A 6-year-old boy is brought in with ear pain and fever for 2 days. Otoscopic
examination reveals a bulging, erythematous tympanic membrane with decreased
mobility on pneumatic otoscopy. Which additional finding best supports a diagnosis of
acute otitis media (AOM)?
A. Clear fluid visible behind the tympanic membrane
B. Otorrhea with a perforated tympanic membrane
C. Recent viral upper respiratory infection
D. Severe ear pain interfering with sleep [CORRECT]
Correct Answer: D
Rationale: The diagnosis of AOM requires: 1) acute onset of symptoms, 2) presence of
middle ear effusion (bulging TM, decreased mobility, air-fluid level, or otorrhea), and 3)
signs of middle ear inflammation (erythema or otalgia). Severe otalgia
(moderate-severe ear pain, ear pain for >48 hours, or temperature ≥39°C/102.2°F)
indicates severe AOM and warrants antibiotic therapy per AAP 2013 guidelines. Option
A describes otitis media with effusion (OME), not AOM. Option B with perforation
confirms AOM but is not the "best" supporting finding for initial diagnosis. Option C is a
risk factor but not a diagnostic criterion. The "severe" modifier (Option D) is crucial for
treatment decisions.
Q3: A 45-year-old man with hypertension presents for follow-up. His home BP log shows
readings consistently 138-142/88-92 mmHg. Today's office BP is 146/94 mmHg.
,According to JNC-8 and 2017 ACC/AHA guidelines, what is the most appropriate
classification?
A. Normal blood pressure
B. Stage 1 hypertension [CORRECT]
C. Stage 2 hypertension
D. Hypertensive urgency
Correct Answer: B
Rationale: Per 2017 ACC/AHA guidelines, Stage 1 hypertension is defined as systolic
130-139 mmHg or diastolic 80-89 mmHg. Stage 2 is ≥140/90 mmHg. This patient's
readings fall in the Stage 1 range (note: JNC-8 used 140/90 mmHg as the threshold for
treatment initiation in adults <60 years, but classification has evolved). The correct
classification uses the higher category when systolic and diastolic fall in different
stages. Hypertensive urgency requires BP ≥180/120 mmHg without end-organ damage.
Option A is incorrect as these values exceed normal (<120/80). Option C requires
≥140/90 consistently. Option D is not applicable.
Q4: A 32-year-old woman presents with 3 days of sore throat, fever to 101.8°F (38.8°C),
tender anterior cervical lymphadenopathy, and tonsillar exudates. She has no cough.
What is the most appropriate next step?
A. Start empiric amoxicillin
B. Order rapid streptococcal antigen test [CORRECT]
C. Obtain throat culture only
D. Start empiric azithromycin
Correct Answer: B
, Rationale: This patient meets 3 Centor criteria (fever, tonsillar exudates, tender anterior
cervical adenopathy, absence of cough), giving approximately 28-35% probability of
Group A Streptococcus (GAS) pharyngitis. The IDSA recommends rapid antigen
detection testing (RADT) for patients with 2-3 Centor criteria. If RADT is positive, treat; if
negative, confirm with throat culture in adults (back-up culture not needed in adults per
some guidelines, but recommended in children). Empiric antibiotics (Options A and D)
are inappropriate without testing or high pre-test probability (≥4 Centor criteria). Option
C alone delays appropriate rapid testing. The modified Centor/McIsaac score adds age
adjustment but rapid testing remains standard.
Q5: A 58-year-old man with COPD presents with increased dyspnea, sputum purulence,
and sputum volume for 3 days. He is afebrile, oxygen saturation 92% on room air. Which
classification of COPD exacerbation is this?
A. Type I (severe) exacerbation
B. Type II (moderate) exacerbation [CORRECT]
C. Type III (mild) exacerbation
D. Anthonisen Type 0 (baseline)
Correct Answer: B
Rationale: Anthonisen criteria classify COPD exacerbations: Type I (severe) = all three
cardinal symptoms (dyspnea, sputum purulence, sputum volume); Type II (moderate) =
two symptoms; Type III (mild) = one symptom plus ≥1 minor symptom (upper
respiratory infection in past 5 days, fever without other cause, increased wheeze,
increased cough, or 20% increase in respiratory/heart rate). This patient has two
cardinal symptoms (dyspnea and sputum purulence—assuming volume increase
qualifies as the third, but with only two explicitly stated, Type II is correct). Type I