Question

question 1 (1 point) ✓ saved
which of the following is a local sign of a skin infection?
fever and leukocytosis
headache and anorexia
pain, erythema, and swelling
nausea, weight loss, and fatigue
question 2 (1 point) ✓ saved
secondary skin infection may occur because the:
patient is allergic to the drug
balance of species in the resident flora is upset
mucosa of the stomach is irritated
infecting microbes spread to adjacent areas
question 3 (1 point) ✓ saved
a mother is a carrier of duchenne muscular dystrophy; the father is unaffected. they have one son with muscular dystrophy. another male child is expected. the probability of the second son having muscular dystrophy is:
100%
50%
25%
0%

Explanation:

• Question 1: Local signs of skin infection are typically present at the site of infection. Pain, erythema (redness), and swelling occur directly at the infected skin area. Fever, leukocytosis, headache, anorexia, nausea, weight - loss, and fatigue are more systemic symptoms.
• Question 2: Secondary skin infections often result from a disruption in the normal balance of the resident skin flora. An allergic reaction to a drug is an allergic response, stomach mucosa irritation is related to the gastrointestinal tract, and microbes spreading to adjacent areas is more about the progression of a primary infection rather than the cause of a secondary one.
• Question 3: Duchenne muscular dystrophy is an X - linked recessive disorder. The mother is a carrier (X^AX^a) and the father is normal (X^AY). For sons, they inherit the Y chromosome from the father and either X^A or X^a from the mother. So the probability of a son getting the affected X^a chromosome is 50%.

Answer:

Question 1: pain, erythema, and swelling
Question 2: balance of species in the resident flora is upset
Question 3: 50%