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. Surgical asepsis is being performed when:

Correct answer: B

Rationale: Surgical asepsis refers to the process of maintaining a sterile environment to prevent the introduction of pathogens to a patient's body. Sterilizing instruments is a crucial aspect of surgical asepsis as it ensures that the instruments used during procedures are free from microorganisms that could cause infections. Wiping down exam tables with bleach may help in cleaning and disinfecting surfaces but does not pertain directly to maintaining a sterile field. Changing table paper is important for cleanliness and infection control but is not specifically related to surgical asepsis. Wearing gloves when performing injections is important for standard precautions and preventing the spread of infection but does not encompass the concept of surgical asepsis, which focuses on maintaining a sterile field during invasive procedures.

3. Improper placement of the hands under the rib cage when performing the Heimlich maneuver could result in:

Correct answer: B

Rationale: The xiphoid process is a small, cartilaginous extension at the inferior end of the sternum. Placing the hands improperly during the Heimlich maneuver too close to this process can result in it breaking off and potentially causing damage to internal organs. Choices A and C are incorrect because the manubrium of the sternum and the coccyx are not in the area where the hands would typically be placed during the Heimlich maneuver.

4. When caring for a patient with latex allergy, the healthcare provider creates a latex-safe environment by doing which of the following?

Correct answer: C

Rationale: Creating a latex-safe environment for a patient with latex allergy is crucial to prevent allergic reactions. Using a latex-free pharmacy protocol is essential as it ensures that medications and supplies provided to the patient are free of latex components. Cleaning a wall-mounted blood pressure device may not be sufficient as the device itself may contain latex parts that can trigger an allergic reaction. Donning latex gloves, even outside the room, is not recommended as powder dispersal can cause issues; only non-latex gloves should be used in a latex-safe environment. Placing the patient in a semi-private room does not directly address the need to eliminate latex exposure from medical supplies and equipment, which is better achieved through a latex-free pharmacy protocol.

5. A client on the nursing unit is terminally ill but remains alert and oriented. Three days after admission, the nurse observes signs of depression. The client states, 'I'm tired of being sick. I wish I could end it all.' What is the most accurate and informative way to record this data in a nursing progress note?

Correct answer: D

Rationale: Subjective data includes thoughts, beliefs, feelings, perceptions, and sensations that are apparent only to the person affected and cannot be measured, seen, or felt by the nurse. This information should be documented using the client's exact words in quotes. The other options indicate that the nurse has drawn the conclusion that the client no longer wishes to live. From the data provided, the cues do not support this assumption. A more complete assessment should be conducted to determine if the client is suicidal.

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