If a patient complains of fatigue and has spoon-shaped nails, a test that may be ordered is _____ measurement

A test that may be ordered is a Hemoglobin measurement.

Step by Step Explanation:

1. The symptoms described, fatigue and spoon-shaped nails (also known as koilonychia), are common signs of iron deficiency anemia.

2. Iron deficiency anemia is a condition where the body lacks enough iron to produce hemoglobin, a protein in red blood cells that carries oxygen from the lungs to all parts of the body.

3. Therefore, to confirm the diagnosis, a doctor may order a hemoglobin measurement test. This test measures the amount of hemoglobin in a person's blood.

4. If the hemoglobin level is lower than normal, it could indicate that the person has iron deficiency anemia.