PACKRAT Exam with Complete Solutions
A 16 year old has just moved schools. He is quiet, moody and not like himself at all. Within six
months he seems to have completely changed back to his previous personality. What is the
most likely diagnosis? CORRECT ANSWER-Adjustment disorder
What is the ...
PACKRAT Exam with Complete Solutions
A 16 year old has just moved schools. He is quiet, moody and not like himself at all. Within six
months he seems to have completely changed back to his previous personality. What is the
most likely diagnosis? CORRECT ANSWER-Adjustment disorder
What is the prophylactic antibiotic most commonly given before a dental procedure if one is
necessary? CORRECT ANSWER-Amoxicillin 2 grams po 1 hour before procedure
Wilson's disease is associated with a build up of what mineral? CORRECT ANSWER-There
is a deficiency of the copper binding protein and therefore a buildup of copper.
Name one oral medication that can be used for MRSA. CORRECT ANSWER-Linezolid
(Zyvox) and Bactrim
Which cardiac medication is used to help with cardiac contractility after you have optimized
most of the other cardiac medications? CORRECT ANSWER-Digoxin
What medication used in hepatitis B infection helps prevent the need for liver transplant?
CORRECT ANSWER-Lamivudine
How is celiac disease most commonly diagnosed? CORRECT ANSWER-Endoscopic biopsy
Mononucleosis
, PACKRAT Exam with Complete Solutions
A 14 year old field hockey player presents with prominent adenopathy, white purple exudates in
the throat and a palpable spleen. What is the most likely diagnosis? CORRECT ANSWER-
Wernicke's aphasia
A patient presents with what appears to be an inability to understand speech. Which aphasia
should be at the top of your differential? CORRECT ANSWER-It is blood in the joint
indicating a fracture even if the fracture line cannot be seen.
A fat pad sign on a lateral x-ray of the elbow has what significance? CORRECT ANSWER-It
is blood in the joint indicating a fracture even if the fracture line cannot be seen.
A corkscrew appearance on barium study should make you think of what diagnosis?
CORRECT ANSWER-Esophageal spasms
What is the treatment for Turner's syndrome? CORRECT ANSWER-Cyclical estrogen and
progesterone
What is the gold standard for diagnosing myocarditis? CORRECT ANSWER-Myocardial
biopsy
By what age should a child be able to hold up her head? CORRECT ANSWER-3 months
, PACKRAT Exam with Complete Solutions
On physical exam, you notice ulnar deviations and swan neck deformities. What is the most
likely diagnosis? CORRECT ANSWER-Rheumatoid arthritis
What is the most accurate way to diagnose urethritis? CORRECT ANSWER-Urine PCR
You hear a loud harsh holosystolic murmur in a child. It is heard best at the LLSB. What is the
most likely diagnosis? CORRECT ANSWER-Ventricular septal defect
The accessory pathway known as the James bundle should make you think of what syndrome?
CORRECT ANSWER-Lown-Ganong-Levine syndrome
A Blalock procedure is used to correct what congenital heart condition? CORRECT
ANSWER-Tetralogy of Fallot
What medication can be used to control bleeding due to uterine atony? CORRECT
ANSWER-Oxytocin (Pitocin)
What is the most common cause of a folate deficiency? CORRECT ANSWER-Alcoholism
List three risk factors for placental abruption. CORRECT ANSWER-HTN, smoking, AMA,
cocaine use, PROM
What ejection fraction is typical for a patient with CHF? CORRECT ANSWER-35-40%
, PACKRAT Exam with Complete Solutions
What is the major concern with using lithium? CORRECT ANSWER-It has a very narrow
therapeutic window. Blood tests are needed every four weeks.
List the four most common places lung cancer will metastasize to. CORRECT ANSWER-
Bone, brain, adrenals and liver
What is the main risk factor for esophagitis? CORRECT ANSWER-Immunocompromised
patient
An EKG shows a regular rate of 50 beats per minute. The QRS is narrow and there is no visible P
wave. What is the most likely diagnosis? CORRECT ANSWER-Junctional rhythm
List two diagnoses which require antibiotic prophylaxis for "dirty procedures?" CORRECT
ANSWER-Prosthetic valve, valve repair with any prosthetic material, prior endocarditis
diagnosis, congential cyanotic heart defect
Does a patient with mitral valve prolapse require prophylactic antibiotics for dental work?
CORRECT ANSWER-No, a recent change moves mitral valve prolapse from high risk to
moderate risk.
A pregnant woman and cat litter should make you think of what diagnosis? CORRECT
ANSWER-Toxoplasmosis
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