Exam 5 Flashcards
(182 cards)
What year is mens growth is considered “delayed puberty”?
14yo
What is the most common cause of hypogonadism in children/young adults?
Constitutional delay of growth and puberty (CDGP_
How is hypogonadism in children/young adults treated?
IM testosterone esters- 50mg monthly, increasing by 25mg (100mg max)
What is the prognosis and treatment for testicular cancer?
Prognosis: Good even up to stage III
Treatment: orchiectomy, radiation, chemo
Which type of alopecia is characterized by being the most common form or “male pattern baldness.”
Alopecia areata
Androgenic alopecia
Alopecia universalis
Traction alopecia
Androgenic alopecia
What androgen is responsible for elevated testosterone causing alopecia?
Dihydrotestosterone (DHT)
Which type of alopecia is an autoimmune response resulting in small round patches?
Alopecia areata
Androgenic alopecia
Alopecia universalis
Traction alopecia
Alopecia areata
Which type of alopecia results in complete hair loss on scalp and body?
Alopecia areata
Androgenic alopecia
Alopecia universalis
Traction alopecia
Alopecia universalis
Which type of alopecia results from constant tension on hair?
Alopecia areata
Androgenic alopecia
Alopecia universalis
Traction alopecia
Traction alopecia
What is Finasteride (Propecia)s MOA, Dose and SE?
Finasteride- used for alopecia
MOA: inhibits Type II 5-alpha reductase, inhibiting conversion of testosterone to DHT
Dose: 1 mg PO once daily
SE: Decreased libido, ED, Women of child-bearing age avoid handling
What is Minoxidil (Rogaine), MOA and application?
MOA: enlarging miniaturized hair follicles
Application: apply to dry scalp twice daily every day
What is the criteria for being diagnosed with adult hypogonadism?
Low testosterone levels with symptoms
When should serum testosterone levels be measured? What level characterizes low testosterone?
Blood test should be in the morning, <300 ng/dl is positive for low testosterone.
Confirm with 2nd test, if <5 ng/dl confirms low T
What is the frequency of administration and notes regarding IM Injection for Testosterone therapy?
Freq: 100mg IM weekly or 200mg IM q other
Notes: very high conc, possible mood swings but most economical
What is the frequency of administration and notes regarding the patch for testosterone therapy?
1-2 patches applied nightly; most similar to physiologic t-levels, apply away from pressure areas
What is the frequency of administration and notes regarding the gel for testosterone therapy?
Admin: 5-10g applied to covered area daily
Notes: Shoulders, upper arms, abdomen
What is the frequency of administration and notes regarding the solution for testosterone therapy?
Admin: 1-4 apps to arm pits dail
Notes: apply deodorant first
What is the frequency of administration and notes regarding the buccal tablet for testosterone therapy?
Admin: 30mg tab q12h
Notes: Do not chew or swallow
What is the frequency of administration and notes regarding the SQ pellet for testosterone therapy?
Admin: Implanted q3-6mon
Notes: Delayed onset (3-4mon)
What is the frequency of administration and notes regarding the oral capsule Jatenzo for testosterone therapy?
Admin: 158-237mg BID
Notes: Take with food, draw serum test 6hrs after AM dose
What is the goal level for testosterone?
btw 400-700 ng/dL
What are the three subtypes of erections?
Psychogenic
Kinetogenic
Reflexogenic
Nocturnal
Psychogenic
Reflexogenic
Nocturnal
Erections are initiated by (parasympathetic/sympathetic) response and suppressed by (parasympathetic/sympathetic)
parasympathetic, sympathetic
What is the mechanism for erections (starting with NO)
NO activates guanylate cyclase
guanylate cyclase converts GTP to cGMP
high cGMP results in Ca release
Ca release produces smooth muscle relaxation
Smooth muscle relaxation allows blood to flood chambers, making veins be squeezed shut preventing drainage