This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A nursing student asks why albuterol, which is selective for beta2 receptors, causes an increased ... (Read 75 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
on: Jul 23, 2018
A nursing student asks why albuterol, which is selective for beta2 receptors, causes an increased heart rate in some patients. How does the nurse respond?
 
  a. Adrenergic agonists can lose their selectivity when given at higher doses.
  b. Bronchodilation lowers blood pressure, which causes a reflex tachycardia.
  c. Some patients metabolize the drug differently and have unusual side effects.
  d. Systemic effects are intensified with inhaled doses.

Question 2

A pregnant patient with diabetes and hypertension is given isoproterenol (Isuprel) to delay preterm labor. Which side effect might the nurse expect?
 
  a. Bronchospasm
  b. Decreased urine output
  c. Hyperglycemia
  d. Hypotension


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: A
Although albuterol affects the beta2 receptors, at higher doses it may also activate beta1 receptors, causing an increase in the heart rate. Bronchodilation does not lower the blood pressure, and activation of beta1 receptors actually may increase it. Tachycardia is a common side effect. The inhaled route reduces the likelihood of systemic side effects.

Answer to Question 2

ANS: C
In diabetic patients, isoproterenol can cause hyperglycemia by promoting beta2-mediated glycogenolysis. It is also used to treat asthma and causes bronchodilation, not bronchospasm. It acts on beta1 receptors in the heart to increase cardiac output, which may increase urine output. It increases blood pressure.


Caiter2013

  • Member
  • Posts: 607
Reply 2 on: Jul 23, 2018
Wow, this really help

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Nursing assessment questions Nursing assessment questions
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
Responses Produced by Activation of Specific Opioid Receptors Responses Produced by Activation of Specific Opioid Receptors
Teaching women about the safety of drug use during pregnancy is an essential component of nursing ... Teaching women about the safety of drug use during pregnancy is an essential component of nursing ...
A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ... A steady needle reading that rises 2 or 3 inches Hg when the engine speed is increased slightly ...
Sensory receptors in human skin. Sensory receptors in human skin.
Video: Deglutition

For a complete list of videos, visit our video library