Antihistamines block the actions of histamine at the 1. H1 ...

[Beheh]

Antihistamines block the actions of histamine at the
 
  1. H1 receptor site.
  2. B1 receptor site.
  3. B2 receptor site.
  4. C1 receptor site.

Question 2

The client is very frustrated that pseudoephedrine is no longer stocked on pharmacy shelves. The client does not like to go the pharmacy counter to obtain the drug. What is the best response by the nurse?
 
  1. This is frustrating, but hopefully it will decrease the amount of methamphetamine being produced.
  2. This is frustrating, but hopefully it will decrease the amount of inhaled heroin being produced.
  3. This is frustrating, but hopefully it will decrease the amount of methylphenidate being produced.
  4. This is frustrating, but hopefully it will decrease the amount of crack cocaine being produced.

[yotaSR5]

Answer to Question 1

Correct Answer: 1
Rationale 1: The H1 receptor site is the site for blocking histamine with the use of antihistamines.
Rationale 2: The B1 receptor site does not play a role in blocking histamine.
Rationale 3: The B2 receptor site does not play a role in blocking histamine.
Rationale 4: C1 is not a site of histamine release.

Answer to Question 2

Correct Answer: 1
Rationale 1: Pseudoephedrine (Sudafed) is a major ingredient in the production of methamphetamine.
Rationale 2: Pseudoephedrine (Sudafed) is a major ingredient in the production of methamphetamine, not heroin.
Rationale 3: Pseudoephedrine (Sudafed) is a major ingredient in the production of methamphetamine, not methylphenidate.
Rationale 4: Pseudoephedrine (Sudafed) is a major ingredient in the production of methamphetamine, not crack cocaine.

[Beheh]

TYSM

[Viet Thy]

Excellent