Which chemical mediator derived from mast cells retracts endothelial cells to increase vascular permeability and to cause leukocyte adhesion to endothelial cells?
a. Chemokines
b. Prostaglandin E
c. Platelet-activating factor
d. Bradykinin
Answer: c. Platelet-activating factor
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A 30-year-old woman, who just found out that she is pregnant, seeks a treatment for her severe acne. What is the most appropriate treatment for her skin condition?
A) Accutane B) Low-dose tetracycline C) Retin-A D) A benzoyl peroxide agent
The nurse is assessing a child brought to the urgent care clinic by her mother who removed a tick from the child's back and is concerned about Lyme disease. If the child has Lyme disease, which manifestations is the nurse most likely to observe?
A) Swelling, redness, itching B) A red bump with a red bull's-eye rash C) Red dots on the ankles and wrists D) A rash with itching that is more intense at night
Which of the following cannot be assessed in the crying infant:
a. Tactile fremitus b. Respiratory rate c. Lung excursion d. Facial symmetry
Can this medication be given by intramuscular injection?
What will be an ideal response?