erectile dysfunction

Question 1

wha is the neurotransmitter responsible for initiating and sustaining and erection?

Answer 1

nitric oxide

Question 2

what is a key messenger in the erection prociess?

Answer 2

cyclic GMP, broken down by PDE

Question 3

how do you diagnose psychogenic ED?

Answer 3

+ nocturnal/morning erections

Question 4

how can you tell if you have organic ED?

Answer 4

no nocturnal erection

Question 5

definition of erectile dysfunction?

Answer 5

inability to attain or maintain

Question 6

what can cause organic ED?

Answer 6

marijuana, alcohol, tobacco

Question 7

what disease can lead to erectile dysfunction that we learned about?

Answer 7

peyronies

Question 8

what test can be used to differentiate between organic and psychogenic ED?

Answer 8

nocturnal penile tumescence testing

Question 9

how can you rule out vascular system as the cause for ED?

Answer 9

trial of PDE-5 inhibitors or injections of vasocactive substances PGE1)

Question 10

what additional vascualr tests may be used if a person fails the vasoactive injection tests?

Answer 10

duplex doppler u/s
penile cavernosography
pudendal arteriography

Question 11

what do you have to worry about w/ PDE-5 inhibitors?

Answer 11

hypotension w/ patiens on alpha blockers for lower urinary tract symptoms

Question 12

what medications contraindicate the use of PDE-5 inhibitors?

Answer 12

nitro and nitrates

Question 13

how long before sex do you have to take sildenafil and vardenafil?

Answer 13

1 hr before sex effective up to 4 hours

Question 14

what is tadalafil good for?

Answer 14

BPH w/ ED onset w/in 30-60 min lasts 36 hrs

Question 15

what can be taken 15 min before sex?

Answer 15

avanafil

Question 16

alprostadil increases relaxation and vasodilation through cAMP, how is it administered?

Answer 16

injection or urethral suppostiory