What do urine tests examine to detect hematuria?
catalase activity of erythrocytes
peroxidase activity of erythrocytes
lyase activity of erythrocytes
none of the above
Correct Answer :
B. peroxidase activity of erythrocytes
chemical tests for hematuria detect the peroxidase activity of erythrocytes by using benzidine.
Related Questions
What does make UTI more common in mid-aged females than in males?
short female urethra
pregnancy
vaginal colonization with enterobacteria
all the above
What is the nature of the prostate-specific antigen?
protease
lyase
carboxylase
hydrolase
Which of the following might cause sterile pyuria?
renal tuberculosis
urinary tract stones
interstitial cystitis
all of the above
What fascial layer(s) cover(s) the prostate?
Denonvilliers fascia
prostatic fascia
levator fascia
all of the above
What is the best initial therapy for hyponatremic dehydration?
administration of hypertonic saline
administration of crystalloid
administration of normal saline
administration of ringer lactate
Which area in the nervous system is tested by bulbocavernosus reflex?
brain stem
C2 C4
S2 - S4
L2 - L4
From where does the main parasympathetic efferent innervation to the pelvic plexus arise?
S1
S2-S4
T11-L2
L3-S1
How does estrogen prevent lower UTI in postmenopausal women?
increasing vaginal secretions
decreasing vaginal pH
increasing normal vaginal flora
decreasing bacterial adherence
Which hormone measures testicular germ cell function best?
LH
FSH
HCG
none of the above
Which antibiotic is the best to treat soft tissue infection with methicillin-resistant Staphylococcus aureus (MRSA) in hospitalized patients?
vancomycin
cefotaxime
penicillin G
tobramycin
All of the following conditions are related to obesity syndrome, EXCEPT:
super fertility
increase aromatization reaction
increase resistance to circulating insulin
sleep apnea
How many renal papillae are there in a typical kidney?
4 to 6
7 to 9
10 to 12
13 to 14
Which of the following is NOT related to von Hippel-Lindau disease?
retinal hemangioblastoma
ureteral atresia
pheochromocytomas
multiple cysts in the pancreas and kidneys
Regarding multicystic kidneys, at what age does the compensatory renal growth end?
at birth
2 years
at puberty
none of the above
Which nephron segment contains the most diluted urine in central diabetes insipidus patient?
proximal convoluted tubules
distal convoluted tubules
collecting duct
loop of Henle
At which week of gestation do the primordial germ cells migrate to form the genital ridges?
third
fourth
fifth
seventh
What is false about purple urine bag syndrome?
occurs due to the interaction between the chemical components of the urine and polyvinyl chloride material in the urine bag
it is commonly symptomless
more common in female nursing home residents
commonly implicated bacteria are K. pneumoniae, P. mirabilis, E. coli
Which disease is described best by the following manifestations: grand mal epilepsy, mental retardation, hypertension, angiomyolipoma, adenoma sebaceum, bilateral enlarged kidneys, and normal renal function?
autosomal dominant polycystic kidney disease
von Hippel-Lindau disease
tuberous sclerosis
Sturge-Webber syndrome
Which statement is false concerning microhematuria?
malignancy is identified in patients presenting with microhematuria more than in patients presenting with gross hematuria
microscopic hematuria is defined as > 3 red blood cells per high powered field (RBC/hpf) on a single specimen
warrants full hematuria workup
history of cigarette smoking is of significance
At which condition is alpha-fetoprotein most frequently elevated?
infiltrating ductal carcinoma of the breast
seminoma
hepatocellular carcinoma
malignant melanoma
Which of the following is (are) direct branch(es) of the abdominal aorta?
median sacral artery
inferior phrenic arteries
gonadal arteries
all of the above
The commonest neoplasms that metastasize to kidneys come from:
breasts
thyroids
lungs
liver
Which of the following contributes second to the seminal fluid by volume?
seminal vesicles
the prostate
testes
bulbourethral glands
The majority of circulating testosterone is:
bound to sex hormone-binding globulin
free
bound to α1-antichymotrypsin
bound to albumin
Which agent should be avoided during living-related donor nephrectomy?
ice slush
heparin
norepinephrine
methylene blue
How can hyperuricosuria cause calcium oxalate calculi?
by increasing oxalate absorption
by heterogeneous nucleation
by inducing hyperoxaluria
by reducing urate crystals saturation
The mature genitourinary system develops from all of the following embryonic sources, EXCEPT:
intermediate mesoderm
mesothelium of celomic cavity
endoderm of the urogenital sinus
somatic ectoderm
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 the half-life of β-HCG?
5 7 days
24 36 hours
2 3 days
12 24 hours
The epithelial component of the prostate consists of all of the following, EXCEPT:
basal cells
intermediate cells
tubulo-columnar cells
neuroendocrine cells