The nurse is evaluating the laboratory results of a stool sample. What is a normal finding?
a. The laboratory reports a stool pH of 5.0.
b. The laboratory reports a negative guaiac.
c. The laboratory reports low levels of enzymes.
d. The laboratory reports reducing substances present.
ANS: B
The normal stool finding is a negative guaiac. Stool pH should be 7.0 to 7.5. A stool pH <5.0 is suggestive of carbohydrate malabsorption; colonic bacterial fermentation produces short-chain fatty acids, which lower stool pH. There should be no enzymes or reducing substances present in a normal stool sample.
You might also like to view...
Which of the following statements best illustrates causality?
A) Individuals who have suffered a myocardial infarction (MI) are at higher risk for a second MI within the next 5 years. B) Prolonged sun exposure is associated with higher rates of skin cancer. C) Hiatal hernias are diagnosed more frequently in elderly individuals. D) Taking time away from work leads to fewer stress-related illnesses.
An older patient is diagnosed with an intestinal obstruction and needs immediate surgery. The patient's next of kin is a granddaughter who lives in a neighboring community. Who will the nurse ask to sign the consent form for the surgery?
1. The patient 2. The patient's daughter 3. The patient's granddaughter 4. Both the patient and granddaughter
The nurse is assessing a patient who presents with a bruised ankle caused by an injury. When documenting this finding, which term is most appropriate for the nurse to use?
1) Petechiae 2) Ecchymosis 3) Purpura 4) Venous star
Which intervention would a nurse most likely use when implementing relapse management?
a. Use a holistic view of the system. b. Identify triggers. c. Understand the individual's personality. d. Provide crisis intervention.