A nurse is caring for a patient who has been prescribed a stool guaiac test.

The patient inquires about the purpose of the test.

How should the nurse respond?

The correct answer is Choice C.

Choice A rationale: Applying four drops of developing solution to each stool specimen is incorrect. Typically, the test requires two drops of solution. Following manufacturer instructions ensures accurate results and prevents unnecessary waste or inaccurate readings.

Choice B rationale: Using toilet paper to transfer the stool specimen is improper. Stool should be collected using the provided applicator stick to avoid contamination, ensuring the accuracy of the fecal occult blood test.

Choice C rationale: Waiting 30 seconds after applying the developing solution allows the chemical reaction to complete, ensuring accurate detection of any occult blood present in the stool sample.

Choice D rationale: Collecting two stool specimens from the same area increases the risk of missing occult blood present in different parts of the stool. Sampling from multiple areas enhances test accuracy and ensures comprehensive results.

Choice A rationale:

Numbness in the fingers is not typically a symptom of respiratory acidosis. This condition is characterized by an excess of carbon dioxide (CO2) in the body, which leads to a decrease in the pH of your blood, making it too acidic. Numbness in the fingers could be a symptom of other conditions, such as peripheral neuropathy or Raynaud’s disease.

Choice B rationale:

Abdominal pain is also not a common symptom of respiratory acidosis. While abdominal discomfort can occur in a variety of conditions, it is not directly associated with the acid-base balance disturbance that characterizes respiratory acidosis.

Conditions that commonly cause abdominal pain include gastrointestinal issues like gastritis, appendicitis, or gallstones.

Choice C rationale:

Dry skin is not a symptom of respiratory acidosis. The skin’s condition can be influenced by many factors, including hydration, environmental conditions, and certain skin conditions like eczema or psoriasis. Respiratory acidosis, on the other hand, is a condition that affects the acid-base balance in the body due to alveolar hypoventilation.

Choice D rationale:

Lethargy is indeed a symptom of respiratory acidosis. This condition occurs when the lungs can’t remove enough CO2, leading to an increase in the acidity of the blood. Symptoms of respiratory acidosis vary according to how long you’ve had the condition and its severity. Initial symptoms can include anxiety, blurred vision, and shortness of breath. If left untreated or in severe cases, symptoms may include fatigue, lethargy, delirium, or confusion. Therefore, a nurse assessing a patient with respiratory acidosis should anticipate lethargy among other symptoms.