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. Which of the following bony landmarks is described as a large, blunt, irregularly shaped process found on the lateral aspect of the proximal femur?

Correct answer: D

Rationale: The correct answer is D: Trochanter. The Greater Trochanter is located on the lateral aspect of the proximal femur and is a large, blunt, irregularly shaped bony process. It serves as an important attachment site for many muscles of the legs, providing leverage and movement. Choice A, Tubercle, is a small rounded projection, usually for the attachment of a ligament or tendon. Choice B, Tuberosity, is a large rounded projection, also typically for muscle attachment. Choice C, Condyle, refers to a rounded articular surface at the end of a bone, usually involved in joints.

3. A client is receiving high-dose brachytherapy as a form of cancer treatment. What type of teaching must the nurse include when educating this client about safety?

Correct answer: D

Rationale: A client undergoing high-dose brachytherapy has a radiation implant placed for cancer treatment. To ensure safety, the client should be in a private hospital room to prevent radiation exposure to others. Limiting visits from friends and family is necessary to prevent overexposure. Option A is incorrect as isolation under airborne precautions is not required for brachytherapy. Option B and C are the correct choices as they focus on minimizing radiation exposure to others, ensuring safety during treatment.

4. A 30-year-old woman has recently moved to the United States with her husband. They are living with the woman's sister until they can get a home of their own. When company arrives to visit the woman's sister, the woman feels suddenly shy and retreats to the back bedroom to hide until the company leaves. She explains that her reaction to guests is simply because she does not know how to speak "perfect English."? What is this woman likely experiencing?

Correct answer: A

Rationale: The woman in the scenario is likely experiencing culture shock. Culture shock is a term used to describe the state of disorientation or inability to respond to the behavior of a different cultural group due to sudden strangeness, unfamiliarity, and incompatibility with the individual's perceptions and expectations. In this case, the woman's feelings of shyness and retreating due to not feeling confident in speaking 'perfect English' align with symptoms of culture shock. The other choices are incorrect: Cultural taboos refer to behaviors or actions that are prohibited within a particular culture; cultural unfamiliarity suggests a lack of knowledge about a specific culture, which is not the case here; and culture disorientation is not a commonly used term in cultural psychology, making it an incorrect option.

5. According to the American Heart Association standards, high-quality CPR for an adult includes all of the following EXCEPT:

Correct answer: D

Rationale: High-quality CPR for adults should not be paused for drug administration. The correct CPR technique involves pushing hard and fast, at a rate of at least 100 compressions per minute and to a depth of at least 2 inches. It is also essential to allow chest recoil between compressions to enable proper blood circulation. Pausing CPR for drug administration would delay the delivery of continuous chest compressions, which are crucial for maintaining blood flow and oxygenation during cardiac arrest.

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