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47 Cards in this Set
- Front
- Back
What is cryptorchidism?
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undescended or maldescended testis
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What are the risk factors of cryptorchidism?
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prematurity, low birth weight, small gestational size, twinning, maternal exposure to estrogen during 1st trimester, family history
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What system must be intact for normal descent of the testicles?
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normal hypothalamic-pituitary-gonadal axis
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What hormones facilitates descent of the testicles?
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testosterone and dihydrotestosterone
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What are the mechanical causes of cryptorchidism?
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gubernaculum not firmly attached to scrotum and the testis don’t descend, also associated w/ short spermatic artery, poor blood supply
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What are the 3 types of palpable undescended testicles?
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true undescended, ectopic, and retractile
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Where are the majority of true undescended testicles?
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inguinal canal
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What type of palpable cryptorchidism correctly exit the external inguinal ring but are then misdirected from the normal descent?
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ectopic
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Which type of palpable cryptorchidism is mostly inguinal location, due to an active cremasteric reflex, and must be monitored regularly as risk of ascent approaches 50%?
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retractile
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What are the 3 types of nonpalpable cryptorchidisms?
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intra-abdominal, congenital anorchia, vanishing testes
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Which type of cryptorchidism is usually w/in a few cm of the inguinal ring?
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intra-abdominal
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Which type of cryptorchidism is absence of one or both testes?
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congenital anorchia
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Which type of cryptoorchidism is thought to be due to intrauterine or perinatal vascular event?
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vanishing testes
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How are unilateral undescended testis w/out hypospadias diagnosed?
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physical exam
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What extra test are required for undescended testes w/ hypospadias or bilateral nonpalpable testes?
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testosterone, 17-hydroxylase progesterone, LH, FSH, HCG injection test, and diagnostic laparoscopy to locate nonpalpable testicle
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At what age is the recommended treatment of cryptorchidism?
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6 months
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What is the medical tx for cryptorchidism?
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HCG injections
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What do HCG injections do?
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stimulate leydig cells to produce androgens
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What are adverse effects of HCG injections?
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secondary sex characteristics
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What is the surgical tx for cryptorchidism?
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orchiopexy between 6 to 12 months
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Orchiopexy must be considered for what types of cryptorchidism?
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abdominally located & for atrophic testicles
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Cryptorchidism mostly causes what type of testicular cancer?
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seminoma
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What is the inability to achieve or maintain an erection sufficient for sexual intercourse?
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erectile dysfunction or formally known as impotence
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What are the risk factors for erectile dysfunction?
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HTN, vascular disease, smoking, diabetes, drugs, hormone disorders, spinal cord or brain injuries, pelvic trauma, venous leak, peyronie’s disease, psych disorders
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What accounts for 50 to 60% of impotence in men over 60?
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arteriosclerosis (vascular disease)
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What drugs cause erectile dysfunction?
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sympathetic blockers, thiazide diuretics, antidepressants, ketoconazole, cimetidine, alcohol, tobacco, recreational drugs
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What hormone disorders cause erectile dysfunction?
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testosterone deficiency, excess prolactin, hypothyroidism
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What condition is an inflammatory disease causing scarring of erectile tissue, produces curvature of the penis interfering w/ sexual function and causing a painful erection?
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peyronie’s disease
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What psychological conditions cause erectile dysfunction?
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anxiety, psychogenic impotence, performance anxiety, depression, and interpersonal conflicts w/ partner
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What should be examined for erectile dysfunction?
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peripheral vascular exam, lower extremity musculoskeletal , neurological, genitalia, prostate, breast, and visual fields
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What test involves injecting prostaglandins that will induce erections in men w/ intact vasculature, and after penile pressure is measured and images taken after injections?
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vasoactive injection
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What test evaluates blood flow, venous leak, signs of arteriosclerosis, measures penile pressure?
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duplex ultrasound
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What test documents erections during sleep?
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nocturnal penile tumescence (NPT)
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Intact erections during sleep is suggestive of what cause of erectile dysfunction?
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psychogenic cause
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Absence of nocturnal erections may indicate what types of erectile dysfunction?
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impaired nerve function or blood supply
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What test involves electromagnetic vibrations evaluating sensitivity and nerve function?
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penile biothesiometry
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What's a contrast study that assesses for both arterial insufficiency and venous leakage in erectile dysfunction?
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cavernosography
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What type of drugs are used to tx erectile dysfunction?
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selective phosphodiesterase type 5 inhibitors
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What are 3 selective phosphodiesterase type 5 inhibitors?
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sildenafil, vardenafil, tadalafil
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What is the MOA of selective phosphodiesterase type 5 inhibitors?
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increase levels of guanosine monophosphate (cGMP), which are smooth muscle relaxers
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When are selective phosphodiesterase type 5 inhibitors contraindicated?
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w/ nitrates which cause exaggerated cardiac preload reduction & hypotension
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What is used as a self injection into the penis for erectile dysfunction?
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prostaglandin
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What are the effects of prostaglandin injections?
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vascular dilation and relaxation of smooth muscle, repeated injections may cause penile scarring, priapism
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What are prostaglandin pellets inserted into the urethra used to tx erectile dysfunction?
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intraurethral suppositories
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What is used to create a manual creation of an erection and works best in men who achieve partial erections?
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vacuum devices
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What is a surgical insertion of malleable or inflatable rods or tubes into the penis?
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penile implants
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What is used to tx androgen deficiency in erectile dysfunction?
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testosterone injections or patches
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