A nurse is reviewing a client’s cardiac rhythm strips and notes a constant P-R interval of 0.35 seconds.
Which of the following dysrhythmias is the client displaying
Atrial fibrillation.
Complete heart block
First-degree atrioventricular block
Premature atrial complexes
The Correct Answer is C
- . Answer and explanation.
The correct answer is choice C, first-degree atrioventricular block.
This is because the PR interval is longer than normal, which indicates a delay in the conduction of electrical impulses from the atria to the ventricles through the AV node. A normal PR interval is 0.12 to 0.2 seconds, or 3 to 5 small squares on the EKG strip.
In this case, the PR interval is 0.35 seconds, which is more than 5 small squares.
Choice A is wrong because atrial fibrillation is a type of arrhythmia where the atria beat irregularly and rapidly, producing chaotic and variable P waves and an irregular ventricular response.
There is no constant PR interval in atrial fibrillation.
Choice B is wrong because complete heart block is a type of arrhythmia where there is no conduction of electrical impulses from the atria to the ventricles, resulting in independent and dissociated atrial and ventricular rhythms.
There are no consistent P waves or PR intervals in complete heart block.
Choice D is wrong because premature atrial complexes are extra beats that originate from the atria and interrupt the normal sinus rhythm.
They produce abnormal P waves that are different from the sinus P waves, and may have a shorter or longer PR interval depending on the timing of the impulse.
However, they do not cause a constant prolongation of the PR interval.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is B.
Assist the adolescent in applying for Medicaid.
This action demonstrates the nurse’s role as an advocate and a resource person for the client, who might be eligible for financial assistance and health care coverage during her pregnancy and postpartum period. Medicaid is a federal and state program that provides health insurance for low-income individuals and families.
Choice A is wrong because contacting the adolescent’s parent for assistance might violate the client’s confidentiality and autonomy, especially if the parent is not aware of or supportive of the pregnancy. The nurse should respect the client’s right to privacy and self-determination, unless there is a risk of harm to the client or the fetus.
Choice C is wrong because referring the adolescent to a local mental health clinic might imply that the client has a mental disorder or needs psychological counseling, which could be stigmatizing and discouraging.
The nurse should assess the client’s emotional state and coping skills, and provide supportive and nonjudgmental care. The nurse can also offer referrals to other community resources, such as prenatal education, parenting classes, or social services, that might benefit the client.
Choice D is wrong because advising the adolescent to place the newborn for adoption might interfere with the client’s decision-making process and personal values.
The nurse should not impose his or her own opinions or beliefs on the client, but rather explore the client’s feelings and preferences about her pregnancy options. The nurse should provide factual information and education about adoption, abortion, or parenting, and help the client weigh the benefits and risks of each option.
Correct Answer is A
Explanation
The correct answer is choice A, administer a fluid bolus.
Choice A rationale:
Administering a fluid bolus is appropriate when a client’s urine output is low, which in this case is less than the minimum expected output of 30 mL/hr. The dark yellow color of the urine also suggests dehydration or concentrated urine, which can be addressed with increased fluid intake.
Choice B rationale:
Initiating continuous bladder irrigation is typically done to clear the urinary tract of blood clots or debris following urologic surgery, not for low urine output or dark urine. Therefore, this intervention is not indicated based on the given scenario.
Choice C rationale:
Obtaining a urine specimen for culture and sensitivity is an action taken when there is a suspicion of a urinary tract infection. The scenario does not provide evidence of infection, such as fever or cloudy urine with a strong odor, so this would not be the first intervention to anticipate.
Choice D rationale:
Clamping the catheter tubing is done in preparation for catheter removal or to assess if the client can void without the catheter. It is not an appropriate intervention for low urine output or dark urine and could potentially cause bladder distention or discomfort.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.