when printing out an ekg a nurse notices that the qrs complexes are extremely small what should be the next step
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. When printing out an EKG, a nurse notices that the QRS complexes are extremely small. What should be the next step?

Correct answer: C

Rationale: Increasing the sensitivity control to 20 mm deflection will double the sensitivity, allowing for better observation of the small QRS complexes. This step is crucial in obtaining a clearer EKG reading. Choice A is incorrect because small QRS complexes do not necessarily indicate impending cardiac arrest; it's more likely a technical issue. Choice B is not the first step to take when small QRS complexes are observed; it's important to adjust the settings first. Choice D is incorrect because decreasing the run speed to 50 is not the appropriate action for this situation; adjusting the sensitivity control is more relevant to improve the visualization of the complexes.

2. You see a patient lying on the floor of the bathroom. You are NOT assigned to this patient. What is the first thing that you should do?

Correct answer: C

Rationale: The correct course of action in this situation is to observe the patient for any injuries and call out for help. It is crucial to act immediately in an emergency, regardless of whether the patient is under your care. Checking for injuries and seeking assistance can help ensure the patient receives prompt and appropriate care. Choosing to inform the nurse of a seizure without evidence or taking no action because the patient is not your assignment are not optimal responses. In a healthcare setting, patient safety and well-being should always be the top priority.

3. A nursing care plan states, 'Assist the patient to the bedside commode PRN.' When will this patient get this assistance to the commode?

Correct answer: A

Rationale: The correct answer is 'Whenever needed.' The abbreviation 'PRN' stands for 'pro re nata,' which translates to 'as needed' or 'whenever necessary.' This means that the patient will receive assistance to the commode whenever they require it, based on their individual needs and condition. Choices B, C, and D are incorrect because 'PRN' does not specify a specific time like bedtime, during the night, or during the day; instead, it indicates assistance based on the patient's needs.

4. The nurse should wash from the ________________________ when washing a patient's eye area.

Correct answer: B

Rationale: When washing a patient's eye area, it is important to start from the inner canthus (closest to the nose) and move towards the outer canthus. This direction prevents any contaminants or debris from the outer area of the eye from moving towards the inner, more sensitive area. Choices C and D are incorrect as they pertain to the nasal passages (nares), which are not relevant when washing the eye area.

5. A patient in a clinic has been diagnosed with hepatitis A. What is the most likely route of transmission?

Correct answer: B

Rationale: The correct answer is contaminated food. Hepatitis A is primarily transmitted through the fecal-oral route, often through the ingestion of contaminated food or water. It is caused by the Hepatitis A virus (HAV), which is a single-stranded, positive-sense RNA virus. Sexual contact with an infected partner is more commonly associated with hepatitis B and C. Blood transfusion is a potential route for hepatitis B and C transmission due to bloodborne pathogens. Illegal drug use, particularly involving shared needles, is a common route for hepatitis C transmission.

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