Into to Laboratory Medicine

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Questions and Answers

What does a quantitative result provide?

A narrative result

A numerical value (correct)

A range of 'normal' values

A yes/no outcome

Which term refers to the proportion of a population who have a specific characteristic in a given time period?

Sensitivity

Specificity

Incidence

Prevalence (correct)

What does specificity measure?

The most accurate measure

The occurrence of new cases of a disease or injury in a population over a specified period of time

The number of patients without the disease and with a negative test out of the number of patients without the disease (correct)

The number of patients with a disease and a positive test out of the number of patients with the disease

What is the gold standard measure known for?

Accuracy (D) Signup and view all the answers

What does the term 'incidence' refer to?

Occurrence of new cases of a disease or injury in a population over a specified period of time (C) Signup and view all the answers

What does sensitivity measure?

Number of patients with a disease and a positive test out of the number of patients with the disease (D) Signup and view all the answers

What does the term 'descriptive value' refer to?

The narrative result (B) Signup and view all the answers

Which term refers to a yes/no or positive/negative result?

A qualitative result (B) Signup and view all the answers

What does the term 'reference value' represent?

The range of 'normal' values (A) Signup and view all the answers

What is the primary purpose of sensitivity tests?

To identify individuals without the disease (B) Signup and view all the answers

How are specificity tests primarily used?

To rule in the disease (A) Signup and view all the answers

What condition is associated with macrocytic anemia?

Folate deficiency (B) Signup and view all the answers

Which condition is commonly linked to microcytic anemia?

Thalassemia (D) Signup and view all the answers

What is a characteristic feature of normocytic anemia?

Hemolytic anemia (B) Signup and view all the answers

What does mean corpuscular hemoglobin measure?

The average amount of hemoglobin in red blood cells (D) Signup and view all the answers

What does mean corpuscular volume represent?

The average volume of a single red blood cell (B) Signup and view all the answers

What does red cell distribution width measure?

The variation in red blood cell size (B) Signup and view all the answers

Which type of white blood cell is associated with responding to allergic reactions and parasitic infestations?

Eosinophils (D) Signup and view all the answers

Which white blood cell type is the first to respond to inflammation or infection?

Neutrophils (C) Signup and view all the answers

Which type of white blood cell is composed of B cells, T cells, and NK cells, and is associated with viral infection?

Lymphocytes (B) Signup and view all the answers

What is the primary function of monocytes?

Disposing of foreign and waste material, especially concerning inflammation (D) Signup and view all the answers

Which type of white blood cell responds to allergic and inflammatory reactions?

Basophils (D) Signup and view all the answers

Study Notes

Descriptive value is the narrative result. A qualitative result is yes/no or positive/negative. Reference value is the range of "normal" values.

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