Alpha Blockers Flashcards Preview

Nursing 2P16 > Alpha Blockers > Flashcards

Flashcards in Alpha Blockers Deck (24):
1

Doxazosin trade name

Cardura

2

Doxazosin expected effect

- vasodilate peripheral blood vessels
- block alpha (adrenergic) receptors to reduce blood pressure

3

Why use doxazosin

- hypertension
- benign prostatic hyperplasia
- urinary outflow obstruction

4

Doxazosin adverse effects

- dysrhythmias
- hepatitis

5

Doxazosin dosages

- 1-8mg/ day for BPH
- 4-16mg/ day for hypertension

6

Doxazosin drug classification

alpha adrenergic blocker

7

Doxazosin routes of admin

PO

8

Doxazosin nursing implications

Hypertension
- check BP after each dose
- assess crackles, dyspnea, orthopnea
- check pulse
- look for distension of jugular vein

BPH
- assess urinary patterns (hesitancy, dribbling, urgency, nocturne, incontinence etc)
- assess weight changes & edema

9

Prazosin drug classification

Alpha Blocker (chemical) & antihypertensive (functional)

10

Prazosin trade name

Minipress

11

Prazosin expected effect

blocks alpha mediated vasoconstriction of adrenergic receptors, inducing peripheral vasodilation

12

why use Prazosin

hypertension

13

Prazosin dosages

1mg BID or TID up to 20mg/ day in divided doses. Usual range 6-15mg/ day (some may need 40mg/ day)

14

Prazosin route of admin

PO

15

Prazosin adverse effects

pancreatitis

16

Prazosin nursing considerations

assess:
- hypertension
- weight, I & O, edema
teach:
- change positions slowly to prevent orthostatic hypotension
- no OTC meds, or alcohol
- do not discontinue abruptly
- fainting can occur after 1st dose, take 1st dose at bedtime, full effect takes 4-6 week, no driving/ operating machinery until 4 hours after 1st dose

17

Terazosin trade names

Hytrin, Zayasel

18

Terazosin drug classification

functional: alpha blocker/ antihypertensive
chemical: adrenergic blocker

19

Terazosin expected effect

decrease total vascular resistance by blocking alpha receptors (to decrease BP)

20

why use terazosin

hypertension, benign prostatic hyperplasia

21

terazosin dosages

BPH: 1mg/ day, can increase to 5-10mg; max 20mg
hypertension: 1mg PO, max 20mg/day

22

terazosin routes of admin

PO

23

terazosin adverse effects

nausea, dizzy, drowsy, orthostatic hypotension, blurred vision, dyspnea, edema

24

terazosin nursing implications

urinary patterns: hesitancy, freq, dysuria, urgency, uric acid levels
hypertension: crackles, dyspnea, orthostatic BP, jugular vein
therapeutic response: lower BP, edema, less BPH symptoms
- do not drive machinery 4 hours after, fainting occur with first dose
- do not discontinue abruptly, no alcohol
- rise slowly
- for ^BP continue with regular diet & exercise