MCQ 3004 - 3018 ( with answer )

Q.No. 3004 ::
BIOCHEMISTRY MCQ
Proteins are made of amino acids linked together by specific 
bonds called :
a. Peptide bonds
b. Nitrogen bonds
c. Hydrogen bonds
d. Hydrogen & Nitrogen bonds
[ A ]

Q.No. 3005 ::
CARDIOLOGY MCQ
The most frequent cause of mitral stenosis is:
a. Atherosclerotic valvular disease
b. Infective endocarditis
c. Congenital malformation 
d. Rheumatic heart disease
[ D ]

Q.No. 3006 ::
GENETIC MCQ
Why is sickle cell disease so called ?
a. because it makes people sick
b. its named after a special type of white blood cell
c. pH changes in the blood cells make them collapse into a 
sickle shape
d. because its caused by an infectious microorganism that has 
sickle shaped cells
[ C ]

Q.No. 3007 ::
CARDIOLOGY MCQ
In the healing of a myocardial infarct, granulation tissue first 
becomes prominent at the margins of the infarct at about :
a. 1 day
b. 3 days 
c. 1 week
d. 2 weeks
[ C ]

Q.No. 3008 ::
GYN/OBS MCQ
A 23-year-old African-American woman, gravida 2 para 1, 
presents to the ER at 32 weeks’ gestation with regular 
menstrual-like cramping and low back pain. Her past medical 
history is significant for preterm labor at 28 weeks’ gestation, 
which resulted in the infant death in the early postnatal period. 
Physical examination shows regular uterine contractions and 
cervical dilation (3 cm). No evidence of membrane rupture is 
present. Contraction stress test is negative. You decide to 
proceed with adequate hydration and tocolysis. Which of the 
following routes is preferred for administration of antenatal 
corticosteroids?
a. Intravenous
b. Intramuscular
c. Oral
d. Inhalational
[ B ]

Q.No. 3009 ::
CARDIOLOGY MCQ
A 42-year-old woman suffers from chronic dyspnea and 
recurrent hemoptysis. A mid-diastolic murmur is heard in the 
left lateral chest wall. The diagnosis is:
a. acute myocardial infarction 
b. mitral stenosis
c. acute bacterial endocarditis
d. systemic lupus erythematosus
[ B ]

Q.No. 3010 ::
CARDIOLOGY MCQ
Hypertension is characterized by which one of the following :
a. aortic stenosis
b. pancarditis 
c. left ventricular hypertrophy
d. valvular verrucae
[ C ]

Q.No. 3011 ::
GYN/OBS MCQ
A 22-year-old Caucasian female, gravida 1 para 0, presents to 
your office at six weeks gestation for a routine antenatal 
check-up.  She has no present complaints.  She does not 
smoke or consume alcohol.  The screening VDRL test and 
confirmatory FTA-ABS test are both positive.  The patient has a 
documented allergic reaction to penicillin that was 
experienced five years ago.  Which of the following is the best 
treatment for this patient?
a. Doxycycline
b. Erythromycin
c. Tetracycline
d. Penicillin desensitization
[ D ]

Q.No. 3012 ::
GYN/OBS MCQ
A 13-year-old Caucasian girl is brought to the office by her 
parents.  She has been having cyclic abdominal pain for the 
last three months.  She has never had a menstrual period.  
She has no other medical problems. She does not use 
tobacco, alcohol, illicit drugs, or any medications.  
Examination reveals mild tenderness and a small rounded 
palpable mass in the suprapubic area.  Gynecologic 
examination shows a bluish tissue bulging between the labia.  
Secondary sexual characteristics such as breasts, pubic and 
axillary hair, are all adequately developed for her age.  Which 
of the following is the most probable diagnosis?
a. Müllerian agenesis
b. Imperforate hymen
c. Physiologic delay of puberty
d. Complete androgen insensitivity syndrome
[ B ]
Explanation:
Imperforate hymen presents as cyclic, pelvic or abdominal 
pain with primary amenorrhea.  Sometimes, a small 
suprapubic mass (the uterus containing retained menstrual 
blood) can be palpated.  Perineal exam will reveal a bulging, 
bluish membrane between the labia.  This bluish or violaceous 
discoloration is due to blood sequestration behind the 
imperforate hymen, and is also known as hematocolpos. 

Q.No. 3013 ::
PHARMACOLOGY MCQ
Atropine is frequently used prior to administration of inhalant 
anesthetics to reduce :
a. Muscle tone
b. Secretions
c. Nausea and vomiting
d. All of the above
[ B ]

Q.No. 3014 ::
PEDIATRIC MCQ
A 12-yr-old child with a history of allergy to yellow jackets is 
stung and immediately begins experiencing tightness in the 
chest and wheezing. The drug of first choice for management 
of this child is :
a. Intramuscular epinephrine
b. Intramuscular diphenhydramine
c. Inhaled albuterol
d. Subcutaneous epinephrine
[ A ]

Q.No. 3015 ::
PEDIATRIC MCQ
A 2-day-old boy manifests poor feeding, vomiting, and lethargy 
leading to coma. Laboratory data reveal respiratory alkalosis 
and hyperammonemia. The urine orotic acid level is also 
elevated. The most likely diagnosis is :
a. Galactosemia
b. Reye syndrome
c. Carbamoylphosphate synthase deficiency
d. Ornithine transcarbamylase deficiency
[ D ]
Explanation: 
Ornithine transcarbamylase (OTC) deficiency is an X-linked 
disorder and is most severe in males. Superficially it looks like 
Reye syndrome, and in older children, OTC deficiency may 
mimic Reye syndrome. Unfortunately, infants with a severe 
neonatal onset have a very poor prognosis. (See Chapter 74 in 
Nelson Textbook of Pediatrics, 17th edition.)

Q.No. 3016 ::
PHARMACOLOGY MCQ
Atropine causes :
a. Spasmolitic activity
b. Intestinal hypermotility
c. Stimulation of contraction in the gut
d. Stimulation of secretory activity
[ A ]

Q.No. 3017 ::
PHARMACOLOGY MCQ
Indicate the anesthetic agent of choice in patient with a liver 
disease :
a. Lidocaine
b. Bupivacaine
c. Procaine
d. Etidocaine
[ C ]

Q.No. 3018 ::
PHARMACOLOGY MCQ
Which of the following agents is the precursor of dopamine ?
a. Bromocriptine
b. Levodopa
c. Selegiline
d. Amantadine
[ B ]

1 Comments

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