Which of the following explains infertility in liver cirrhosis male patients?
decrease plasma estradiol levels
increase plasma testosterone-estradiol-binding globulin levels
suppression of suprarenal androgens
exaggerated pituitary response to feedback hormones
Correct Answer :
B. increase plasma testosterone-estradiol-binding globulin levels
liver cirrhosis results in increase plasma levels of testosterone binding proteins and increase in peripheral conversion of testosterone to estrogens.
Related Questions
Which statement is NOT related to Klinefelter syndrome?
sterility is the rule
has a considerable short life span
treatment requires testicular microdissection and sperm extraction
47 XXY karyotype
What are the first and second most common zones from where prostate cancers arise?
central then transitional
peripheral then transitional
peripheral then central
transitional then central
When should a 70 yrs. man with 40 ml prostate volume, and total PSA of 2.0 ng/ml, go for a prostate biopsy?
if PSA reading had exceeded 2.7 ng/ml over 12 months
if free PSA reading was less than 0.4 ng/ml
if total PSA reading was greater than 8 ng/ml
any of the above
What is the number of bacteria per high-power field microscopy that matches colony counts of 100,000/mL?
100
50
10
5
Which period of intrauterine life does the process of organ formation (organogenesis) take place?
9 12 weeks
12 15 weeks
15 18 weeks
18 21 weeks
Where is the centre of reflex erection located at?
the brain cortex
the sacral cord
the lumbar cord
the hypothalamus
By which of the following structures, do the fused lower poles of hoarseshoe kidneys get trapped during embryologic ascent?
inferior mesenteric artery
superior mesenteric artery
celiac artery
common iliac artery
What is false concerning renal vasculature?
there are 4 surgical segments of the kidney, based on the segmental artery distribution
along the kidney convexity, there is an avascular plane
there are no collaterals between segmental arteries
in < 10%, the posterior branch is the first to branch off the renal artery
What nerve provides the major neural supply to the striated urinary sphincter and levator ani muscle?
somatic innervations
sympathetic fibers from T11 - L2
the pudendal nerve
the obturator nerve
Which class of the following agents does NOT impair spermatogenesis?
alkylating agents
phenothiazines
antiandrogens
prostaglandins
How many renal papillae are there in a typical kidney?
4 to 6
7 to 9
10 to 12
13 to 14
What antibiotic could result in red man syndrome?
vancomycin
clindamycin
streptomycin
tobramycin
Which organism is capable of proliferation in the urine and causing urethritis?
Ureaplasma urealyticum
Chlamydia trachomatis
E. coli
Neisseria gonorrhea
How can hyperuricosuria cause calcium oxalate calculi?
by increasing oxalate absorption
by heterogeneous nucleation
by inducing hyperoxaluria
by reducing urate crystals saturation
What is the nerve supply of the adrenal gland?
sympathetic to the medulla
parasympathetic to the medulla
sympathetic to the cortex
parasympathetic to the cortex
Which of the prostate medications could result in significant hypotension?
finasteride
prazosin
silodosin
vardenafil
What fascial layer(s) cover(s) the prostate?
Denonvilliers fascia
prostatic fascia
levator fascia
all of the above
Which of the following is false regarding Addison`s disease?
autoimmune disease in 70% of the cases
diagnosed by the rapid ACTH stimulation test
characterized by low serum sodium and high potassium
may coexist with hyperthyroidism and diabetes mellitus
Which of the following is NOT a cause of hypocitraturia?
high protein diet
hypokalaemia
proximal renal tubular acidosis
idiopathic
What vessels are located in the prostate neurovascular bundle?
Watson plexus
capsular arteries and veins
inferior vesical and midrectal vessels
Santorini plexus
How long post bilateral orchiectomy, will patients be functionally castrated?
immediately
after 2 hrs.
after 12 hrs.
after 24 hrs.
Which statement is false concerning capacitation of spermatozoa?
occurs after acrosome reaction
entails removal of a glycoprotein layer
it is a biochemical event of sperm maturation
changes occur in the female genital tract
Which statement concerning urine pH is false?
influenced by food and medications
renal stones form at the extremes of pH range
reliable only when measured by 24 hr. urine collection
ranges from 4 7
Which of the following contributes second to the seminal fluid by volume?
seminal vesicles
the prostate
testes
bulbourethral glands
Which of the following lab results indicates prerenal failure?
serum BUN : creatinine > 20
urine [Na] < 30 mEq/L
Na excretion fraction < 1
all of the above
What is the most likely cause of large scrotal hematoma in neonates?
clotting factor VIII deficiency
clotting factor IX deficiency
breech delivery
scrotal cavernous haemangioma
Which medicine(s) might enhance hypoprothrombinemic effect on oral anticoagulants?
allopurinol
aminoglycosides
cimetidine
all of the above
What do urine tests examine to detect hematuria?
catalase activity of erythrocytes
peroxidase activity of erythrocytes
lyase activity of erythrocytes
none of the above
Which of the following might cause sterile pyuria?
renal tuberculosis
urinary tract stones
interstitial cystitis
all of the above
Which microbe causes red diaper syndrome?
Serratia marcescens
Streptococcus pyogenes
Clostridium difficile
Staphylococcus saprophyticus