Vasodilators

Question 1

What is the action?

Answer 1

Act on vascular smooth muscles to cause muscle relaxation
leads to vasodilation & ↓ BP
↓ Peripheral vascular resistance which ↑ cardiac output

Question 2

Vasodilators drug names?

Answer 2

Hydralazine
Nitroprusside
Minoxidil

Question 3

What are the contraindications?

Answer 3

Allegies

Question 4

What are the cautions?

Answer 4

Any situation that can result in ↓ BP
Peripheral vascular disease
CAD (coronary artery disease)
CHF, cerebral insufficiency
Tachycardia

Question 5

What is the indications (use for)?

Answer 5

Severe HTN
Malignant HTN (organ damage)
Hypertensive emergencies (BP > 180/120)

Question 6

What are the adverse effects?

Answer 6

CNS: Dizziness, Headache, Anxiety
CV: reflex tachycardia
Skin: Abnormal hair growth (minoxidil)
GI upset: Nausea & vomiting
Cyanide toxicity with nitroprusside
Pink/cherry-red skin, HA, Dizziness, & tachycardia

Question 7

What are the nursing implications?

Answer 7

Hx for allergies
Skin, cardiac, respiratory, abdominal
Vitals, ECG, weight
Labs: renal/hepatic fxn
ineffective tissue perfusion
lifestyle changes
Monitor BP closely
↓ fluid volume, dehydration, vomiting, & diarrhea
Safety precautions due to CNS
Response to drug