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What is the correct answer?

4

The majority of circulating testosterone is:

A. bound to sex hormone-binding globulin

B. free

C. bound to α1-antichymotrypsin

D. bound to albumin

Correct Answer :

A. bound to sex hormone-binding globulin


only 2% of the circulating testosterone is free, while the remaining is bound to different types of proteins most of which is sex hormone binding globulin.

Related Questions

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4

What is the narrowest part of the ureter?

A. uretero-pelvic junction

B. uretero-vesical junction

C. where ureters cross the pelvic brim

D. where ureters cross the common iliac bifurcation

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4

What is the most common cause of hematuria in men over 60 yrs.?

A. kidney stones

B. glomerulonephritis

C. BPH

D. bladder cancer

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4

What is the function of PSA in semen?

A. increases semen volume

B. has antimicrobial activity

C. liquefies the seminal coagulum

D. decreases semen pH

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4

Which of the following mediates calcium reabsorption in the distal renal tubules?

A. aldosterone

B. hypocalcemia

C. parathyroid hormone

D. vitamin D

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4

All of the following conditions are related to obesity syndrome, EXCEPT:

A. super fertility

B. increase aromatization reaction

C. increase resistance to circulating insulin

D. sleep apnea

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4

To which group of lymph nodes do tumors at the anterior superior area of the bladder, first, drain?

A. hypogastric

B. internal iliac

C. external iliac

D. lateral sacral

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4

Regarding renal ectopia, usually, the adrenals:

A. are cross ectopic

B. are at their normal position

C. travel with the kidneys

D. undergo ischemic atrophy

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4

In which organelle in Leydig cell does testosterone synthesis take place?

A. ribosome

B. mitochondria

C. Golgi apparatus

D. endoplasmic reticulum

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4

Which of the following does asymptomatic hematuria workup include?

A. cystoscopy

B. CT urography

C. urine cytology

D. all of the above

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4

Which of the prostate medications could result in significant hypotension?

A. finasteride

B. prazosin

C. silodosin

D. vardenafil

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4

What is the creatinine clearance in ml/min for a 70 kg man aging 50 yrs. with 1.1 mg/dL serum creatinine?

A. 79.54

B. 44.19

C. 84.15

D. 94.25

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4

In males, which of the following structure(s) can NOT be palpated during digital rectal examination?

A. pelvic floor muscles

B. seminal vesicles

C. anterior surface of the sacrum

D. median lobe of the prostate

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4

What helps in treating Candida albicans cystitis is:

A. sodium bicarbonate

B. phyto soya

C. ascorbic acid

D. sol palmetto

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4

Which statement is false concerning the dipstick method for detecting hematuria?

A. depends on the ability of hemoglobin to oxidize a chromogen indicator

B. negative results need to be confirmed by microscopic examination

C. has a sensitivity of 95% and a specificity of 75%

D. the presence of many epithelial cells suggests skin or vaginal contamination

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4

What is false about indinavir sulfate stones?

A. intratubular crystal formation might occur

B. CT cannot reliably confirm the presence of indinavir calculi

C. stone formation is demonstrated in 80% of patients taking the medication

D. is a protease inhibitor with poor solubility and significant urinary excretion

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4

Which artery is NOT a branch of the anterior division of internal iliac artery?

A. superior vesical artery

B. inferior vesical artery

C. superior gluteal artery

D. inferior gluteal artery

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4

What is the most significant complication of cyclosporine?

A. hepatic toxicity

B. renal toxicity

C. neural toxicity

D. cardiac toxicity

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4

What is false concerning fosfomycin antibiotic?

A. has a limited cross-resistance with most common antibacterial agents

B. causes injection site reactions

C. is active against most uropathogens

D. is effective as a single-dose agent

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4

Which part of the prostate is traversed by the ejaculatory duct:

A. central zone

B. peripheral zone

C. transitional zone

D. fibromuscular stroma

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4

On tracing the IVU dye down, in a dilated ureter, the dilation stops at a level then continues as a normal calibre ureter. What could the pathology be?

A. lower ureteral stricture

B. ureteral valve

C. modified Lich-Gregoire ureteral reimplantation

D. residual dilation of hydroureter

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4

Where is the gene sex-determining region (SRY) located at?

A. long arm of X chromosome

B. long arm of Y chromosome

C. short arm of Y chromosome

D. short arm of X chromosome

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4

Which statement is true about the female urethra?

A. harder to catheterize when compared to the male urethra

B. 4 inch long

C. opens into the vestibule below the clitoris

D. gets wider at the post-menopausal age

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4

What is false about purple urine bag syndrome?

A. occurs due to the interaction between the chemical components of the urine and polyvinyl chloride material in the urine bag

B. it is commonly symptomless

C. more common in female nursing home residents

D. commonly implicated bacteria are K. pneumoniae, P. mirabilis, E. coli

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4

What is the number of bacteria per high-power field microscopy that matches colony counts of 100,000/mL?

A. 100

B. 50

C. 10

D. 5

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4

What are the first and second most common zones from where prostate cancers arise?

A. central then transitional

B. peripheral then transitional

C. peripheral then central

D. transitional then central

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4

Which statement is false concerning the gubernaculua?

A. degenerate after birth

B. called the caudal genital ligaments

C. help guide the testes down through the inguinal canals

D. represent undifferentiated mesenchyme

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4

Which of the following carries the greatest risk of HIV transmission to health care workers?

A. splash of patient`s blood to the eyes

B. splash of patient`s blood to the mouth

C. surgical suture needle stick

D. hollow bore needle stick

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4

What causes pure testicular feminization is:

A. over estrogen synthesis

B. defective end-organ androgen response

C. extra X chromosome (XXY)

D. failure of genital ridge regression

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4

The epithelial component of the prostate consists of all of the following, EXCEPT:

A. basal cells

B. intermediate cells

C. tubulo-columnar cells

D. neuroendocrine cells

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4

By which of the following structures, do the fused lower poles of hoarseshoe kidneys get trapped during embryologic ascent?

A. inferior mesenteric artery

B. superior mesenteric artery

C. celiac artery

D. common iliac artery