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

Author Question: A patient is preparing for travel and reports having frequent motion sickness. The nurse will tell ... (Read 36 times)

genevieve1028

  • Hero Member
  • *****
  • Posts: 601
on: Jul 23, 2018
A patient is preparing for travel and reports having frequent motion sickness. The nurse will tell the patient to ask the provider about which antihistamine?
 
  a. Desloratadine (Clarinex)
  b. Diphenhydramine (Phenadoz)
  c. Hydroxyzine (Vistaril)
  d. Promethazine (Phenergan)

Question 2

A patient who has chronic allergies takes loratadine (Claritin) and develops a severe reaction to bee stings. The patient asks the nurse why the antihistamine did not prevent the reaction. What will the nurse say?
 
  a. Allergy symptoms that are severe are caused by mediators other than histamine.
  b. H1 blockers do not prevent the release of histamine from mast cells and basophils.
  c. Second-generation H1 blockers contain less active drug and do not work in severe reactions.
  d. Severe allergic reactions occur through actions on muscarinic receptors.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagnavarro

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: D
Some antihistamines, including promethazine, are labeled for use in motion sickness. Desloratadine, diphenhydramine, and hydroxyzine are not used for motion sickness.

Answer to Question 2

ANS: A
Severe allergic reactions with symptoms of anaphylaxis are caused by mediators other than histamine, so the benefits of antihistamines are limited. H1 blockers do not block the release of histamine, but this is not why they are not effective in anaphylaxis. Second-generation agents are as effective as first-generation agents in allergic reactions mediated by histamine; neither is effective for treating anaphylaxis.


genevieve1028

  • Member
  • Posts: 601
Reply 2 on: Jul 23, 2018
Great answer, keep it coming :)

Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

(A) Scratch test; patient is exposed to allergens through a light scratch on the skin; (B) Positive (A) Scratch test; patient is exposed to allergens through a light scratch on the skin; (B) Positive
Closed urinary drainage system. Urine being measured after it leaves patient’s body via catheter. Closed urinary drainage system. Urine being measured after it leaves patient’s body via catheter.
EHR systems enable providers to view patient records across organizations. EHR systems enable providers to view patient records across organizations.
Mensuration: A goniometer is used to measure the range of motion of a joint. Mensuration: A goniometer is used to measure the range of motion of a joint.
Chest X-ray of a patient with emphysema. Chest X-ray of a patient with emphysema.
The relationship of substrate con- version (as measured by optical density) to the amount of patient ... The relationship of substrate con- version (as measured by optical density) to the amount of patient ...
Video: Introduction to Insulin

For a complete list of videos, visit our video library