the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. The nurse is developing a plan of care for an infant after surgical intervention for imperforate anus. The nurse should include in the plan that which position is the most appropriate one for the infant in the postoperative period?

Correct answer: A

Rationale: The most appropriate position for an infant after surgical intervention for imperforate anus is the prone position. Placing the infant in a prone position helps keep the hips elevated, reducing edema and pressure on the surgical site. This position promotes optimal healing and comfort for the infant. Option B, supine with no head elevation, does not provide the necessary elevation to reduce pressure on the surgical site. Option C, side-lying with the legs extended, does not offer the same benefits as the prone position in terms of reducing pressure on the surgical site. Option D, supine with the head elevated 45 degrees, does not specifically address the need for hip elevation to prevent pressure on the surgical site. Therefore, the correct choice is the prone position for this postoperative care scenario.

3. During the evaluation of the quality of home care for a client with Alzheimer's disease, the priority for the nurse is to reinforce which statement by a family member?

Correct answer: C

Rationale: The correct answer is, '"We have safety bars installed in the bathroom and have 24-hour alarms on the doors."?' Ensuring the safety of a client with Alzheimer's disease is crucial in home care. Installing safety features like bars in the bathroom and alarms on doors help prevent accidents and injuries. This contributes to creating a safe environment that promotes independence and autonomy for the client. Choices A, B, and D are incorrect because while they are important aspects of care, ensuring safety in the home environment takes precedence in caring for a client with Alzheimer's disease.

4. During an examination, a nurse notices a draining ulceration on a patient's lower leg. What is the most appropriate action in this situation?

Correct answer: C

Rationale: In this scenario, the most appropriate action is to wash hands, put on gloves, and then continue examining the ulceration. Wearing gloves is crucial when there is a possibility of contact with body fluids, as in the case of a draining ulceration. Contacting the physician is not necessary at this point; the immediate focus should be on proper infection control by washing hands and wearing gloves. Changing the order of the examination is not recommended as it is important to follow a systematic approach to avoid missing any crucial assessments.

5. The supervising RN asks you to bring the unit's collected lab specimens to the lab 'stat'. You should ______________.

Correct answer: C

Rationale: In healthcare settings, 'stat' is commonly used to indicate that something should be done immediately and without any delay. It is a critical term used to prioritize urgent tasks. Nurses are responsible for various tasks, including handling urgent requests such as transporting lab specimens promptly. Option A is incorrect as nurses can handle urgent tasks like 'stats'. Option B is not as specific as option C, which clearly emphasizes the need for immediate action. Option D is incorrect as it suggests delaying the task until later, which goes against the urgency implied by the term 'stat'.

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