A nurse is preparing to obtain a guaiac smear sample from a client for fecal occult blood testing. Which of the following actions should the nurse plan to take?
Wear sterile gloves when collecting the sample.
Discard samples that contain urine.
Collect three samples from a single bowel movement.
Take the sample from the outer edge of formed stool.
The Correct Answer is B
Choice A reason: While wearing gloves is a standard precaution to prevent contamination and protect the nurse from potential pathogens, the gloves used for collecting a guaiac smear sample do not need to be sterile. Clean, non-sterile gloves are typically sufficient for this procedure.
Choice B reason: It is crucial to discard any samples that contain urine because urine can interfere with the results of the fecal occult blood test (FOBT). The presence of urine can cause false positives due to the peroxidase activity in urine, which can lead to unnecessary further testing.
Choice C reason: Collecting three samples from a single bowel movement is not recommended. Instead, it is advised to collect samples from three separate bowel movements to increase the likelihood of detecting intermittent bleeding, which is common in conditions like colorectal cancer.
Choice D reason: Taking the sample from the outer edge of formed stool is not the best practice. The sample should be taken from different areas of the stool to ensure a representative sample, as blood may not be uniformly distributed throughout the stool.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Tapping the client's facial nerve and noting any facial twitching is not a specific assessment for bacterial meningitis. This action is more related to evaluating facial nerve function and is not typically used to diagnose meningitis.
Choice B reason: Striking the client's patellar tendon with a percussion hammer and noting any increase in response is a test for reflexes, which may or may not be altered in bacterial meningitis. An increased response can be seen in various neurological conditions and is not specific to meningitis.
Choice C reason: Gently elevating the client's head and noting any nuchal rigidity is a key part of the focused assessment for bacterial meningitis. Nuchal rigidity, or stiffness of the neck, is a classic sign of meningitis and is assessed by gently lifting the head and attempting to move the chin toward the chest. If the client resists due to pain or stiffness, this could indicate nuchal rigidity associated with meningitis.
Choice D reason: Running a tongue blade on the outside of the client's sole and noting any flaring of the toes, known as the Babinski sign, is used to assess for central nervous system lesions and is not specific to meningitis. While it can be part of a neurological assessment, it does not specifically indicate bacterial meningitis.
Correct Answer is C
Explanation
Choice A reason: Digoxin is primarily used to treat atrial fibrillation and heart failure. It is not the first-line medication for sinus bradycardia with ST-segment elevation, as it can further slow down the heart rate.
Choice B reason: Sotalol is a beta-blocker and an antiarrhythmic medication that can be used to treat ventricular arrhythmias and maintain sinus rhythm in atrial fibrillation. However, it is not indicated for sinus bradycardia and could exacerbate the condition.
Choice C reason: Atropine is the medication of choice for symptomatic sinus bradycardia. It works by blocking the action of the vagus nerve on the heart, leading to an increased heart rate. Atropine can quickly reverse the symptoms of bradycardia, such as dizziness and shortness of breath.
Choice D reason: Lidocaine is an antiarrhythmic medication used to treat ventricular arrhythmias. While it can be used in acute settings, it is not the first choice for sinus bradycardia with ST-segment elevation.
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