each small square on the ekg paper is

NCLEX-RN

NCLEX RN Predictor Exam

1. Each small square on the EKG paper is:

A. 0.04 seconds long and 5mm tall
B. 0.2 seconds long and 5mm tall
C. 0.04 seconds long and 20mm tall
D. 0.04 seconds long and 1mm tall

Correct answer: D

Rationale: Each small square on an EKG paper represents 0.04 seconds long and 1mm tall. This standardization is essential for accurate measurements. One large square on EKG paper consists of 5 small squares in length and 5 small squares in height, which equals 0.2 seconds long and 5mm tall (0.5 mV). Choice A is incorrect because while the duration is correct, the height mentioned is not accurate. Choice B is incorrect as it provides the correct height but the duration is inaccurate. Choice C is incorrect as the height mentioned is exaggerated, and the duration is correct but the height is not. Therefore, the correct answer is 0.04 seconds long and 1mm tall.

2. The client often sighs and says in a monotone voice, 'I'm never going to get over this.' When encouraged to participate in care, the client says, 'I don't have the energy.' These cues are suggestive of which nursing diagnoses? Select all that apply.

A. Hopelessness
B. Power
C. Interrupted sleep pattern
D. Disturbed self-esteem

Correct answer: A

Rationale: A nursing diagnosis involves clinical judgment about a response to a health problem. In this scenario, the client's expressions of feeling overwhelmed and lacking energy indicate feelings of hopelessness and powerlessness. While fatigue is mentioned, there is no direct evidence to support an interrupted sleep pattern, making option C incorrect. Similarly, disturbed self-esteem and self-care deficit are not evident from the given cues, making options D and E incorrect.

3. Which of these is a correctly stated outcome goal written by the nurse?

A. The client will walk 2 miles daily by March 19
B. The client will understand how to give insulin by discharge
C. The client will regain their former state of health by April 1
D. The client achieve desired mobility by May 7

Correct answer: A

Rationale: Outcome goals should be SMART, i.e., Specific, Measurable, Appropriate, Realistic, and Timely. Option A is the only outcome that has a specific behavior (walks daily), with measurable performance criteria (2 miles), and a time estimate for goal attainment (by March 19). Option B lacks specificity in terms of what 'understand how to give insulin' entails, and the timeline is vague ('by discharge'). Option C is not measurable or specific about what 'regain their former state of health' means. Option D does not provide a specific behavior or measurable criteria for 'desired mobility,' and the timeline is the only element that is time-bound.

4. When performing CPR, at what rate should chest compressions be applied?

A. 100 per minute
B. 60 per minute
C. As quickly as possible
D. 200 per minute

Correct answer: A

Rationale: During CPR, chest compressions should be applied at a rate of 100 compressions per minute in order to effectively circulate blood and oxygen to vital organs. Option A, '100 per minute,' is the correct answer as it aligns with the recommended compression rate in CPR guidelines. Option B, '60 per minute,' is incorrect as it is too slow and may not provide adequate circulation. Option C, 'As quickly as possible,' is vague and does not specify the recommended compression rate. Option D, '200 per minute,' is incorrect as it exceeds the recommended rate and may not be as effective in maintaining perfusion.

5. During the examination, it is often appropriate to offer some brief teaching about the patient's body or the examiner's findings. Which one of these statements by the nurse is most appropriate?

A. "Your atrial dysrhythmias are under control."?
B. "You have pitting edema and mild varicosities."?
C. "Your pulse is 80 beats per minute, which is within the normal range."?
D. "I'm using my stethoscope to listen for any crackles, wheezes, or rubs in your lungs."?

Correct answer: C

Rationale: During an examination, providing brief educational information to the patient can enhance rapport, as long as the patient can comprehend the terminology. The most appropriate statement from the nurse is "Your pulse is 80 beats per minute, which is within the normal range." This statement conveys a vital sign in a way that is likely understandable to the patient. Choices A, B, and D use terminology that may be unfamiliar or confusing to the patient. Option A mentions 'atrial dysrhythmias,' which might not be clear to the patient. Option B involves terms like 'pitting edema' and 'varicosities,' which could be unfamiliar to the patient. Option D references 'crackles,' 'wheezes,' and 'rubs,' which might not be easily understood by the patient.