A nurse is reinforcing teaching with a client who will undergo a colonoscopy the following week. Which of the following instructions should the nurse include?
Restrict the diet to clear liquids for 1 to 3 days before the procedure.
Expect the provider to schedule another procedure to remove any polyps.
Do not eat or drink anything except water for 12 hours before the procedure.
Administer enemas 2 days before the procedure.
None
None
The Correct Answer is A
The correct answer is Choice A.
Choice A rationale: A clear liquid diet 1 to 3 days before a colonoscopy minimizes residue in the colon, enhancing mucosal visualization and reducing the risk of missed lesions. Clear liquids include water, broth, tea, and gelatin, which are easily absorbed and leave minimal waste. This dietary preparation complements bowel cleansing agents like polyethylene glycol. Inadequate preparation can obscure polyps or inflammation. Normal stool consistency should be absent during the procedure to ensure optimal diagnostic accuracy.
Choice B rationale: Polypectomy is typically performed during the colonoscopy itself if polyps are detected. Most polyps are removed using snares or biopsy forceps during the same session, reducing the need for a second procedure. Scheduling another procedure is reserved for complex or large lesions requiring advanced techniques. Delaying removal increases the risk of progression to malignancy. Normal colonoscopy findings include pink mucosa and absence of polyps; any deviation warrants immediate intervention when feasible.
Choice C rationale: Restricting intake to only water for 12 hours before the procedure is insufficient and potentially misleading. Colonoscopy preparation requires both dietary modification and pharmacologic bowel cleansing, not just fasting. Water alone does not clear the colon of fecal matter. Additionally, fasting without electrolyte replacement may lead to dehydration and electrolyte imbalance. Normal serum potassium ranges from 3.5 to 5.0 mEq/L; inadequate preparation may cause hypokalemia, especially with laxative use.
Choice D rationale: Enemas are not routinely recommended 2 days before colonoscopy. They may be used adjunctively on the day of the procedure for distal colon cleansing but are insufficient for full bowel preparation. Oral bowel prep agents like polyethylene glycol are preferred for complete evacuation. Enemas only reach the rectosigmoid region and do not cleanse the ascending or transverse colon. Incomplete prep compromises mucosal visualization and diagnostic yield, increasing false-negative rates.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is: Choice A: Maintain direct pressure over the site.
Here's the rationale for each choice:
- Choice A: Maintain direct pressure over the site (CORRECT) This is the most important initial step in controlling bleeding for any patient, especially one with hemophilia who has a deficiency in clotting factors. Maintaining pressure directly on the wound helps to form a clot and stop the bleeding.
- Choice B: Check whether the bleeding has stopped While checking for bleeding cessation is important, it shouldn't be the immediate next step after applying a dressing. Maintaining pressure ensures the dressing remains effective. Once pressure is released, you can assess for continued bleeding.
- Choice C: Obtain a radial pulse Assessing the radial pulse is not directly related to managing the bleeding from the laceration. While it's a vital sign, it's not a priority in this situation.
- Choice D: Reinforce the dressing over the site While reinforcing the dressing might be necessary later if it becomes saturated with blood, maintaining direct pressure is the crucial first step.
Correct Answer is A
Explanation
The correct answer is choice A. Washing hands after leaving the room is an important infection control measure for individuals who come into contact with clients on contact precautions. Choice B is incorrect because gowns are only necessary when there is a risk of contact with the client's body fluids. Choice C is incorrect because gloves should not be reused. Choice D is incorrect because the client should not leave the room while on contact precautions. Choice B is not correct because gowns are only necessary when there is a risk of contact with the client's body fluids. Choice C is not correct because gloves should not be reused. Choice D is not correct because the client should not leave the room while on contact precautions.
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