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20.) A 7-year-old girl is brought to the physician because of a 2-day history of fever,
headache, sore throat, and swollen glands. She does not have a runny nose,
congestion, or cough. She has no allergies to medications. Her temperature is
38.6C (101.4 F), blood pressure is 100/60 mm Hg, pulse is 120/min, and
respirations are 16/min. Examination shows a swollen, erythematous oropharynx
With tonsillar exudates. The anterior cervical lymph nodes are enlarged and
tender. No other abnormalities are noted. Which of the following is the most likely
causal organism?
A) Adenovirus
B) Corynebacterium diphtheriae
C) Group A streptococcus
D) Haemophilus influenzae
E) Mycoplasma pneumoniae
21.) A 70-year-old nursing home resident is admitted to the hospital because of
progressive obtundation over the past 2 days. He has tachycardia, tachypnea, and
hypotension. Bilateral basilar crackles and an S3 gallop are heard on auscultation.
Examination shows jugular venous distention and peripheral edema. Swan-Ganz
catheterization shows a cardiac index of 1.8 L/min/m2 (N=2.5–4.2), a mean
Pulmonary capillary wedge pressure of 23 mm Hg (N=1–10), and markedly
Increased systemic vascular resistance. Which of the following is the most likely
diagnosis?
A) Cardiogenic shock
B) Hypovolemic shock
C) Neurogenic shock
D) Septic shock
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22.) A 42-year-old man with alcoholism is brought to the emergency department by a
friend because of fever and progressive shortness of breath for 12 hours. His
friend reports that they were eating leftover chicken and drinking beer earlier in
the day when the patient suddenly choked and vomited. Six hours later, he
developed sweating, chills, and shortness of breath. He has not had any
subsequent nausea, vomiting, hematemesis, or abdominal pain. He has smoked
Two packs of cigarettes daily for 22 years and drinks 12 to 18 beers daily. He is in
moderate respiratory distress. His temperature is 39.3 C (102.8 F), blood pressure
is 90/60 mm Hg, pulse is 120/min, and respirations are 24/min. Examination
shows no jugular venous distention. Breath sounds are decreased halfway up the
left lung with increased dullness. Cardiac examination shows a normal S1 and S2;
no murmurs are heard. There is no abdominal tenderness. Bowel sounds are
hypoactive. X-ray films of the chest show a left pleural effusion and air in the
mediastinum. Thoracentesis is performed.
Laboratory studies show:
Leukocyte count 18,000/mm3
Segmented neutrophils 85%
Bands 10%
Lymphocytes 5%
Serum Protein 6 g/dL
Lactate dehydrogenase 200 U/L
Pleural fluid Leukocyte count 8000/mm3
Segmented neutrophils 98%
Monocytes 2%
Protein 4.2 g/dL
Amylase 140 U/L
Lactate dehydrogenase 180 U/L
Gram's stain
WBC present
Organisms none
Which of the following is the most likely diagnosis?
A) Congestive heart failure
B) Esophageal rupture
C) Pancreatitis
D) Pericarditis
E) Tuberculosis
23.) A 2-year-old girl with tricuspid atresia has increasing respiratory distress for 2
days. She has been recovering uneventfully from an operation 10 days ago to join
systemic venous return with pulmonary arterial circulation. Over the past 4 days,
she has been weaned off mechanical ventilation, started on oral feedings, and
is receiving chest physiotherapy for atelectasis. Her temperature is 37.4 C (99.3 F),
blood pressure is 98/64 mm Hg, pulse is 120/min, and respirations are 46/min.
Examination shows nasal flaring, grunting, and intercostal retractions. An x-ray
film of the chest shows large bilateral pleural effusions. Thoracentesis yields 300
mL of whitish-yellow fluid. The supernatant remains uniformly opaque on
centrifugation. Which of the following is the most likely cause of the pleural
effusions?
A) Chylothorax
B) Congestive heart failure
C) Empyema
D) Pulmonary embolism
E) Superior vena cava obstruction
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22. B?
23. A whitish yellow fluid
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24.) A 23-year-old man is brought to the physician by his mother because he has heard
a voice over the past month telling him to hurt himself. His mother says that her
son has no friends and is a lifelong loner; since graduating from high school, he
has been unable to hold a job. He admits to smoking marijuana occasionally and
drinking six beers weekly. Examination shows a poorly groomed man with poor
eye contact. He has a flat affect and limited facial expression. He says he has no
intention of harming himself or others. Which of the following is the most
appropriate next step in management?
A) Schedule a follow-up visit in 4 weeks
B) Prescribe oral risperidone and schedule a follow-up visit in 2 weeks
C) Admit him to the partial hospital program and prescribe oral lithium carbonate
D) Admit him to the psychiatric unit for detoxification
E) Admit him to the psychiatric unit and prescribe oral imipramine
25.) A 23-year-old man is brought to the physician by his mother because he has heard
a voice over the past month telling him to hurt himself. His mother says that her
son has no friends and is a lifelong loner; since graduating from high school, he
has been unable to hold a job. He admits to smoking marijuana occasionally and
Drinking six beers weekly. Examination shows a poorly groomed man with poor
Eye contact. He has a flat affect and limited facial expression. He says he
has no intention of harming himself or others. Which of the following is the most
appropriate next step in management?
A) Schedule a follow-up visit in 4 weeks
B) Prescribe oral risperidone and schedule a follow-up visit in 2 weeks
C) Admit him to the partial hospital program and prescribe oral lithium carbonate
D) Admit him to the psychiatric unit for detoxification
E) Admit him to the psychiatric unit and prescribe oral imipramine
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26.) An 18-month-old boy is brought for a well-child examination. He was born at 37
weeks' gestation and weighed 2800 g (6 lb 3oz). There were no prenatal or
perinatal complications. Developmental history indicates that he is able to run and
walk up stairs while holding his mother's hand. He can hold a crayon but does not
Scribble spontaneously. He is at the 40th percentile for length and 50th percentile
for weight. Examination shows a crude pincer grasp. Which of the following is the
most appropriate assessment of fine and gross motor development?
Fine Motor Gross Motor
Development Development
A) Delayed normal
B) Normal delayed
C) Delayed delayed
D) Normal normal
27.) Five months after beginning fluoxetine to treat obsessive-compulsive disorder, a
19-year-old man states that he discontinued his medication 2 months ago because
he had begun to worry about taking his medication every day. His initial response
to the medication was good. His symptoms have now returned, and his morning
ritual of cleaning and grooming consumes so much time that his job is in jeopardy.
In addition to education about the nature of his disorder and its treatment, which
of the following is the most appropriate next step in management?
A) Tell the patient to schedule a return visit as needed
B) Offer to change the medication
C) Request that the patient's parents superviseadministration of medication
D) Monitor the patient's compliance by weekly blood tests
E) Begin a trial of cognitive-behavior therapy
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