urology diagnostic testing

Question 1

When to check Testosterone Levels

Answer 1

Collect sample at 8AM when testosterone levels are the highest
If normal – stop testing
If abnormal – repeat 1-2 more times to confirm
If low x2 check LH and FSH

Question 2

primary hypogonadism labs

Answer 2

Testosterone low and LH and FSH high

Klinefelter

Question 3

secondary hypogonadism labs

Answer 3

Testosterone low and LH and FSH low

Type II DM, liver/kidney disease, aging

Question 4

Causes of an elevated PSA

Answer 4

BPH
Prostate cancer
Prostatic inflammation or infection
Perineal trauma: Rarely DRE, Bike riding, Sexual activity

Question 5

Medications that reduce PSA

Answer 5

5-alpha-reductase inhibitors (50% or greater reductions)
NSAIDs
Statins 17.4%
Thiazides 26%

Question 6

Urine Culture and Sensitivity Traditional gold standard for significant bacteriuria

Answer 6

> 100,000 cfu/mL of urine

Question 7

Uroflowmetry

Answer 7

Screening tool for patients with suspected bladder outlet obstruction
Reserved for patients with severe symptoms where invasive therapy is considered—done by urologist