bonus 2

Question 1

Refers to the ability of a test to correctly identify those with a condition

Answer 1

sensitivity

Question 2

Refers to the ability of a test to correctly identify those without a condition

Answer 2

specificity

Question 3

Proportion or number of individuals with a condition at a given time

Answer 3

prevelance

Question 4

Number of new cases occurring within a period of time

Answer 4

incidence

Question 5

A person with a latent tuberculosis infection (True/False):
Does not exhibit any signs or symptoms of active infection.
true

Answer 5

true

Question 6

A person with a latent tuberculosis infection (True/False):Can spread the disease to others.

Answer 6

false

Question 7

A person with a latent tuberculosis infection (True/False):Will have a positive tuberculin skin test

Answer 7

true

Question 8

A person with a latent tuberculosis infection (True/False):Will have >50% lifetime risk of developing active tuberculosis

Answer 8

false

Question 9

A 37-year-old woman with ulcerative colitis with poor symptom control without rectal bleeding presents with the following hemogram:

Hg=9.9 g/dL (12–14 g/dL) (99 g/L [120–140 g/L])
MCHC=33 g/dL (31–37 g/dL) (330 g/L [310–370 g/L])
MCV=86 fL (80–96 fL)
RDW=12% (11%–15%) (0.12 proportion [0.11–0.15 proportion])
These findings are most consistent with:

	Correct
Iron deficiency.
Beta thalassemia minor.
Anemia of chronic disease.
Pernicious anemia

Answer 9

anemia of chronic disease

Question 10

A 67-year-old man taking NSAIDs daily for back pain and reporting fatigue presents with the following hemogram:

Hg=8.4 g/dL (12–14 g/dL) (84 g/L [120–140 g/L])
MCHC=26 g/dL (31–37 g/dL) (260 g/L [310–370 g/L])
MCV=69 fL (80–96 fL)
RDW=19% (11%–15%) (0.19 proportion [0.11–0.15 proportion])

These findings are most consistent with:

Iron deficiency anemia
Beta thalassemia minor
Vitamin B12 deficiency
Drug-induced macrocytosis

Answer 10

Correct

Iron deficiency anemia

Question 11

A 54-year-old man of Asian ancestry presents with the following hemogram:

Hg=11.6 g/dL (12–14 g/dL) (116 g/L [120–140 g/L])
Hct=37% (42–48%) (0.37 proportion [0.42–0.48 proportion])
MCHC=24 g/dL (31–37 g/dL) (260 g/L [310–370 g/L])
MCV=64 fL (80–96 fL)
RDW=14% (11%–15%) (0.14 proportion [0.11–0.15 proportion])
RBC=6.6 million/mm3 (4.7–6.1 million/mm3)

These findings are most consistent with:

	Correct
Folate deficiency.
Acute blood loss.
Alpha thalassemia minor.
Iron deficiency anemia

Answer 11

Alpha thalassemia minor