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12 Cards in this Set

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Diuretics
What are the drugs that modify circulating volume?
Diuretics
a mainstay of antihypertensive therapy; if use only one drug, it is usually a diuretic. Especially useful with other agents as well since therapy tends to cause fluid retention. Useful in many black patients.
prevents hypervolemia
What is the mechanism of action for Diuretics?
Diuretics
mechanisms of action

1. initally decreases blood volume and fluid in tissues.
Causes increased Na+ excretion and water follows

After several months, plasma volume returns to normal but still has antihypertensive effect.

2. Appears to also relax blood vessels.
Diuretics
Side or toxic effects.

1. potassium depletion (causes arrythmias)

2. may aggravate diabetes melitus
1. diabetes
2. renal or liver disease
3. Cardiac arrythmias
What are the contraindications for taking diuretics?
Antihypotensive agents
How do people treat low BP?
to increase blood pressure

1. increase peripheral resistance
2. Increased cardiac output
3. Replace blood volume
What is the mechanism of action for antihypotensive agents?
1. Chronic hypotension
2. Acute hypotension
3. Hypovolemic shock
a. replace blood volume
What are the therapeutic uses for Antihypotensive agents?
Antihypotensive Agents
1. Chronic hypotension
2. Acute hypotension
3. Hypovolemic shock
a. replace blood volume
Antihypotension agents
because of emergency situation, concerns for side effects and contraindication do not exist.
True
Antihypotensive agents are not used for chronic use.

True or false?