MIDTERM EXAM (MODULES 1–4 & CASE
STUDIES) QUESTIONS AND 100% VERIFIED
ANSWERS WITH RATIONALES GRADED A+
LATEST UNIVERSITY OF TEXAS – ARLINGTON
1.
A 28-year-old woman presents with a 2-day history of dysuria and urinary
frequency. She has no fever or flank pain. What is the first-line treatment for
uncomplicated cystitis in a non-pregnant adult?
A. Ciprofloxacin 500 mg orally twice daily for 3 days
B. Nitrofurantoin 100 mg orally twice daily for 5 days
C. Trimethoprim 160 mg orally twice daily for 7 days
D. Amoxicillin 500 mg orally three times daily for 10 days
Answer: B. Nitrofurantoin 100 mg orally twice daily for 5 days
Rationale: Nitrofurantoin is a first-line agent for uncomplicated cystitis in non-
pregnant adults due to efficacy against common uropathogens and minimal impact
on gut flora. Fluoroquinolones like ciprofloxacin are reserved for complicated
cases or resistant pathogens.
,2.
A 45-year-old man with hypertension and type 2 diabetes presents with a new
onset of hematuria. Which is the most appropriate initial diagnostic test?
A. Kidney biopsy
B. CT scan of the abdomen and pelvis
C. Urinalysis with microscopy
D. Ultrasound of the kidneys
Answer: C. Urinalysis with microscopy
Rationale: Urinalysis is the first-line, non-invasive test for hematuria to assess for
infection, proteinuria, or glomerular abnormalities. Imaging is indicated if
hematuria persists or malignancy is suspected.
3.
A patient presents with symptoms of major depressive disorder. Which of the
following findings is essential for diagnosis according to DSM-5?
,A. Episodes of mania
B. Persistent depressed mood or anhedonia for at least 2 weeks
C. Psychotic symptoms
D. Panic attacks
Answer: B. Persistent depressed mood or anhedonia for at least 2 weeks
Rationale: DSM-5 criteria for MDD require at least 2 weeks of depressed mood or
loss of interest/pleasure in activities, along with other associated symptoms.
4.
A 7-year-old child presents with a sore throat, fever, and anterior cervical
lymphadenopathy. Rapid strep test is positive. What is the first-line treatment?
A. Azithromycin 10 mg/kg daily for 3 days
B. Penicillin V 250 mg orally four times daily for 10 days
C. Amoxicillin 50 mg/kg once daily for 5 days
D. Clindamycin 20 mg/kg daily for 7 days
Answer: B. Penicillin V 250 mg orally four times daily for 10 days
, Rationale: Penicillin or amoxicillin is first-line therapy for streptococcal
pharyngitis in children. Azithromycin is reserved for penicillin allergy.
5.
A 32-year-old woman presents with sudden-onset right lower quadrant pain,
nausea, and vomiting. She is febrile and has rebound tenderness. What is the most
likely diagnosis?
A. Cholecystitis
B. Appendicitis
C. Ovarian cyst rupture
D. Ectopic pregnancy
Answer: B. Appendicitis
Rationale: Classic presentation of appendicitis includes RLQ pain,
nausea/vomiting, fever, and tenderness. Ectopic pregnancy must be ruled out with
a pregnancy test.
6.
Which lab result is most indicative of iron-deficiency anemia?