Nursing Elites

1. A client must use a non-rebreathing oxygen mask. Which of the following statements is true regarding this type of mask?

• A. A non-rebreather can provide an FiO2 of 40%.
• B. A client should breathe through his or her mouth when using a non-rebreather.
• C. A non-rebreather offers a reservoir from which the client inhales.
• D. The mask of a non-rebreather should be changed every 3 hours.

Correct answer: A

Rationale: A non-rebreather mask is used for supplemental oxygen delivery for clients experiencing breathing difficulties. The non-rebreather mask includes a one-way valve that allows exhaled air to escape, preventing the rebreathing of carbon dioxide. The client inhales oxygenated air from a reservoir bag attached to the mask, providing high-concentration oxygen therapy. A non-rebreather mask can deliver FiO2 levels of up to 90%, making it an effective intervention for clients requiring high oxygen concentrations. Therefore, the statement that 'A non-rebreather can provide an FiO2 of 40%' is correct. Choices B, C, and D are incorrect because clients should breathe through their nose and mouth, the mask offers a reservoir for inhaling oxygen, and the mask should be assessed and potentially replaced if soiled or damaged, not routinely changed every 3 hours.

2. A client on lithium has diarrhea and vomiting. What should the nurse do first?

• A. Recognize this as a drug interaction
• B. Give the client Cogentin
• C. Reassure the client that these are common side effects of lithium therapy
• D. Hold the next dose and obtain an order for a stat serum lithium level

Correct answer: D

Rationale: Diarrhea and vomiting are manifestations of lithium toxicity. The priority action for the nurse is to hold the next dose of lithium and obtain an order for a stat serum lithium level to confirm toxicity. This ensures patient safety and prevents further harm. Recognizing it as a drug interaction is not the first step in this scenario. Cogentin is used to manage extrapyramidal symptoms (EPS) associated with antipsychotics, not lithium toxicity. Reassuring the client about these symptoms as common side effects of lithium therapy is inappropriate as they indicate a more serious issue than typical side effects like hand tremors, nausea, polyuria, and polydipsia.

3. You are on the unit and overhear another nurse talking on the phone to a patient's friend who wants to see her patient who is comatose and on a ventilator. Since you cared for that patient yesterday, you know that the patient's significant other, who is also the designated healthcare surrogate (HCS) and has power of attorney (POA), has expressly stated that he wants this person on the list for restricted visitors. The nurse whispers that she'll call him to visit as soon as the significant other has gone home. What should your first response be?

• A. Inform the significant other
• B. Report the nurse to the nurse manager
• C. Speak with the nurse directly in private
• D. Call the visitor and tell him he can't visit

Correct answer: C

Rationale: Speaking with the nurse directly and privately is the most constructive manner in which to handle this situation and advocate for the significant other's wishes. Doing so will open communication with a peer and build the relationship, instead of alienating the other nurse by taking action that does not involve her and will cast her in a negative light with others. It is essential to express your concerns regarding honoring the significant other's requests and rights regarding the limitation of visitors. Option A is incorrect because the significant other is not the one trying to visit, and it is more appropriate to address the nurse directly first. Option B is not the best initial response as it may escalate the situation without giving the nurse a chance to correct the issue. Option D is incorrect as it does not address the issue at its source and may create further conflict without resolving the underlying problem.

4. When escorting a patient to the operating room on a stretcher, what should you do to prevent the patient from falling?

• A. Ensure the safety belt or strap is secured on the patient while escorting them to the operating room
• B. Use a safety belt or strap on the patient throughout their escort to the operating room
• C. Lower the bed position when moving the patient from the bed to the stretcher
• D. All of the above options are correct

Correct answer: B

Rationale: When escorting a patient to the operating room on a stretcher, it is crucial to secure a safety belt or strap on the patient to prevent falls during the transfer. This safety measure is not considered a restraint but a necessary precaution. Lowering the bed position is not necessary; in fact, the bed should be in a high position to align with the stretcher. Locking the wheels of the stretcher is essential to prevent accidents during patient transfer. Therefore, the correct action to prevent falls while moving a patient to the operating room is to use a safety belt or strap on the patient throughout the escort.

5. A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?

• A. Contain histamine and provide protection during allergic reactions
• B. Are involved in phagocytosis
• C. Provide protection and immunity against foreign substances
• D. Carry hemoglobin and oxygen to body tissues

Correct answer: C

Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue. Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes. Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages. Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.

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