Term 4 lecture Pharm Flashcards
1
Q
Which of the following is not a Nucleus receptor
a. Thyroid Hormone
b. Prolactin
c. steroids
d. Vitamin D
A
B. Prolactin is a peptide ligand for cytokine receptors.
2
Q
Which of the following drugs is mediated by binding to receptors.
- Mannitol
- Antacids
- Mesna
- Morphine
A
- Morphine binds to the Mu receptors.
The effects of Mannitol, Antacids, Mesna, and Dimercaprol, Colstipol, are not receptor mediated.
3
Q
What is to be expected when EC 50 is less than KD
- No spare receptors exist
- spare receptors exist
- competitive inhibition
- No inhibition exist.
A
- spare receptors exist