Kamsi
Forum Guru
Topics: 103
Posts: 347
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20. A 72-year-old man comes to the physician
because of generalized
weakness and night sweats for 6 months. During this
period he has had
a 5-kg (11-lb) weight loss. He has had polycythemia
vera for 12 years
treated with hydroxyurea and multiple phlebotomies.
Examination shows
cachexia. The liver is enlarged and nontender with a
span of 13 cm;
the spleen is enlarged. Hematocrit is 27%, leukocyte
count is 3200/mm3,
and platelet count is 150,000/mm3. A blood smear is
shown. Which of
the following is the most likely diagnosis?
A
) Acute myelogenous leukemia
B
) Cirrhosis of the liver
C
) Hodgkin's disease
D
) Miliary tuberculosis
E
) Myelofibrosis
26. A 35-year-old woman is brought to the emergency
department by
her family because of shortness of breath, tightness
in her chest, and
palpitations for 2 hours. Over the past 11 months,
she has had five
similar episodes; during the last episode 3 weeks ago,
she was treated with
an intravenous medication that caused conversion to
sinus rhythm. Her
blood pressure is 95/60 mm Hg, and pulse is 165/min
and regular. The
lungs are clear to auscultation. Which of the
following is the most
likely underlying dysrhythmia?
A
) Accelerated idioventricular rhythm
B
) Accelerated junctional rhythm
C
) Atrial fibrillation
D
) Multifocal atrial tachycardia
E
) Normal sinus rhythm
F
) Paroxysmal supraventricular tachycardia
G
) Premature supraventricular beats
H
) Premature ventricular beats
I
) Sick sinus syndrome
J
) Sinus bradycardia
K
) Sinus tachycardia
L
) Ventricular fibrillation
M
) Ventricular tachycardia
45. A 2-year-old girl has had fever and bloody
diarrhea for 10 days.
A stool culture obtained 7 days ago grew Salmonella
species sensitive
to amoxicillin. A blood culture was negative.
Despite beginning oral
amoxicillin therapy 4 days ago, her diarrhea has
persisted. Current
examination shows no other abnormalities except for a
temperature of 38.6 C
(101.5 F). Which of the following is the most likely
explanation for
the failure of amoxicillin to improve her symptoms?
A
) Amoxicillin does not alter the course of
Salmonella enteritidis
B
) Amoxicillin has caused pseudomembranous colitis
C
) Amoxicillin is absorbed at the level of the
jejunum, leaving no
drug to be delivered to the colon
D
) Oral amoxicillin is not absorbed into the
systemic circulation in
the presence of diarrhea
E
) Salmonella has expressed an inducible ß-lactamase
that inactivates
amoxicillin
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| donjuan
Forum Junior
Topics: 9
Posts: 68
|
1. i would go with E as does not mention anything about blast cells
2.F hr of 160
3.probably D because B takes atleast 1 week of atb treatment
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| hanialkhadher
Forum Elite
Topics: 16
Posts: 256
|
Myelofibrosis
Paroxysmal supraventricular tachycardia
Salmonella has expressed an inducible ß-lactamase
that inactivates
amoxicillin , i know this Q.
___________________
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| doc179
Forum Guru
Topics: 67
Posts: 1,217
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E,C,B ?
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| elitoki
Forum Guru
Topics: 54
Posts: 508
|
E, F, A.
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| dr.wad
Forum Senior
Topics: 3
Posts: 335
|
A
F
i dont know 
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| jazmil
Forum Elite
Topics: 13
Posts: 298
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Hania is right, I've seen this question before too. The blood film in the 1st question shows tear drop shaped cells.
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