Question

se electrolytes are excreted with the when onton comme nts A Potassium B. Chloride c. Sodium D. Calcium Achent is experiencing a hypertensive crisis Blood press 200/12 Prescription reads. nifedipine To my stat You know this medication A Decrease the heart rate by Vaal stimulation B. Directly relax arteriolar smooth muscle C. Promote diuretics D. Block calcium channels & decrease blood pressure 3. The nurse is about to administer a beta blocker to a client. Which of the follow priority nursing assessment before administering the medication? A. Checks blood pressure B. Checks blood pressure and pulse C. Checks serum potassium level D. Checks respiratory rate

Answer 1

Ans) 1) C. Sodium

Explaination:

- In hyponatremia, the level of sodium in blood is too low. A low sodium level has many causes, including consumption of too many fluids, kidney failure, heart failure, cirrhosis, and use of diuretics.

2) D. Block calcium channels & decrease blood pressure

Explaination:

- Nifedipine is a peripheral arterial vasodilator which acts directly on vascular smooth muscle. The reduction in calcium influx by nifedipine causes arterial vasodilation and decreased peripheral vascular resistance which results in reduced arterial blood pressure.

- By acting on vascular smooth muscle, they reduce contraction of the arteries and cause an increase in arterial diameter, a phenomenon called vasodilation (CCBs do not work on venous smooth muscle). By acting on cardiac muscles (myocardium), they reduce the force of contraction of the heart.

3) B. Checks blood pressure and pulse

Explaination:

- Before administering beta-blockers:

Check for allergies
Know what other drugs the patient is receiving including over the counter (OTC) and herbs.
Know why the patient is receiving the drug
Obtain current BP and apical pulse rate; if below 90 systolic or 60 beats per minute(BPM) hold the drug and notify the health care provider (HCP). Check your institution’s policy, some say hold below 50 BPM.