Answer: A false negative is the result of a laboratory test that reports something as showing a negative result when a disease is actually present.
Explanation: The following terms should be noted when it comes to validity of a test;
1. True positive (TP): This refers to patients who have the disease and have positive test results.
2. True negative (TN) : Patients do not have the disease and the result of the test is negative.
3. False positive (FP) : Patients do not have the disease but have a positive test result.
4. False negative (FN) : Patients have the disease but have negative test results.