What is false concerning coagulase splitting bacteria (Griess) test?
it is a reduction reaction that converts nitrate to nitrite
nitrazine reagent papers are used to elicit the reaction
it is false negative in diluted urine, on taking vitamin C, and in gram +ve bacteria
the reaction takes 4 minutes to complete
Correct Answer :
D. the reaction takes 4 minutes to complete
the reaction takes 4 hrs. to complete.
Related Questions
What causes Cushing`s disease is:
bilateral adrenal hyperplasia
pituitary over secretion of ACTH
exogenous administration of glucocorticoids
immune-mediated disease
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
Which structure is a part of the renal hilum?
renal pelvis
branches of the renal artery
tributaries of renal vein
all of the above
Which class of the following diuretics could cause erectile dysfunction?
loop diuretics
thiazide diuretics
potassium sparing diuretics
osmotic diuretics
Which of the following hormones, primarily, controls spermatogenesis?
GnRH
testosterone
LH
FSH
Which of the following is NOT a part of the urogenital diaphragm structures?
perineal membrane
deep transverse perineal muscle
urethral sphincter
Camper`s fascia
Which statement is false concerning smegma?
it is the white secretion produced under the foreskin in males
it has a crucial role in penile cancer development
it contains lysozymes, chymotrypsin, neutrophil elastase and cytokines
female smegma can be found between the labia
Which of the renal artery occlusive conditions, commonly, do NOT affect renal function?
intimal fibroplasia
medial fibroplasia
medial hyperplasia
serosal hyperplasia
What degrades semenogelin and determines the consistency of the seminal coagulum is:
spermine
acid phosphatase
PSA
semenoglobulin
What causes ureteral dilation during pregnancy is:
mechanical compression by the gravid uterus
physiological increase urine flow during pregnancy
elevated levels of progesterone
reflex inhibition of ureteral contractions
Which class of the following agents does NOT impair spermatogenesis?
alkylating agents
phenothiazines
antiandrogens
prostaglandins
Which zone of the prostate originates from the Wolffian duct tissue:
central zone
peripheral zone
transitional zone
periurethral glands
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 statement explains the first event in the micturition reflex?
opening of internal bladder sphincter
fall in urethral pressure
rise in intravesical pressure
cessation of sphincter EMG activity
What is true regarding hematospermia?
should be investigated thoroughly like hematuria
is rarely associated with significant urologic pathology
carries a risk of infertility
mandates testicular biopsy
All of the following develop from the mesonephric ducts, EXCEPT:
vas deferens
seminal vesicles
appendix epididymis
appendix testis
The commonest neoplasms that metastasize to kidneys come from:
breasts
thyroids
lungs
liver
Which type of urinary casts are solidified TammHorsfall mucoproteins secreted from the tubular epithelial cells of individual nephrons?
granular
hyaline
waxy
pigment
Regarding renal ectopia, usually, the adrenals:
are cross ectopic
are at their normal position
travel with the kidneys
undergo ischemic atrophy
Which statement regarding post-obstructive diuresis (POD) is false?
urine production exceeding 200 ml/hr for 2 consecutive hours or producing greater than 3 L of urine in 24 hours is diagnostic of POD
pathologic POD can be exacerbated by excessive fluid replacement
the replacement fluid choice is ringer lactate
fluid resuscitation depends on the degree of dehydration
Serum testosterone should be measured:
at mid-day
at the hour of sleep
in the morning
late afternoon
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 drug does NOT result in urinary retention?
terazosin, antihypertensive
benzodiazepines, psychotropic medicine
levodopa, anti-Parkinsonism medicine
brimonidine, glaucoma eye drops
Which part of the prostate is traversed by the ejaculatory duct:
central zone
peripheral zone
transitional zone
fibromuscular stroma
Between which 2 fascial planes does the prostatic neurovascular bundle travel?
prostatic fascia and levator fascia
prostate capsule and prostatic fascia
Denonvilliers fascia and prostate capsule
Denonvilliers fascia and endopelvic fascia
What helps in treating Candida albicans cystitis is:
sodium bicarbonate
phyto soya
ascorbic acid
sol palmetto
All of the following conditions are related to obesity syndrome, EXCEPT:
super fertility
increase aromatization reaction
increase resistance to circulating insulin
sleep apnea
In which body tissue(s) are creatine and phosphocreatine converted to creatinine?
bone marrow
skeletal muscles
brown fat
liver
What increases blood volume and pressure in corpora cavernosa during erection is:
increase in sympathetic discharge
contraction of ischiocavernosa and bulbocavernosa muscles
increase arterial flow and closure of emissary veins
shunting of blood from the dorsal to the central cavernosal artery
What is false concerning the urinary bladder anatomy?
as it distends, it peels off the peritoneum from the abdominal wall
the interureteric ridge is located between the 2 ureteric orifices and the uvula vesicae
Waldeyer`s sheath covers only the distal ureter and forms the deep trigone
in adults, it is percussible over the abdomen when contains at least 150 ml