The nurse observes the following EKG. Which lab would the nurse correlate with this finding?

Na + 134

K+ 6.1

K+ 2.1

Mg+ 18

Answer and Explanation

The Correct Answer is C

A. Mild hyponatremia (Sodium < 135 mEq/L) typically does not produce distinctive ECG changes. This value is unlikely to correlate with the presence of U waves.

B. Hyperkalemia (Potassium > 5.0 mEq/L) is associated with peaked T waves, widened QRS complexes, and flattened or absent P waves, not U waves.

C. Hypokalemia (Potassium < 3.5 mEq/L) is the primary cause of U waves. A potassium level of 2.1 mEq/L is significantly low and can result in ECG changes, including U waves, ST segment depression, and prolonged QT intervals. These changes reflect altered ventricular repolarization.

D. Hypermagnesemia (Magnesium > 2.5 mEq/L) can cause ECG changes such as prolonged PR and QRS intervals, bradycardia, and heart block. However, such an extreme magnesium level of 18 mEq/L would cause severe toxicity and is not associated with U waves.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is ["A","B","E"]

Explanation

A. LDL of 160 mg/dL is elevated, which is a risk factor for atherosclerosis.

B. Total cholesterol of 280 mg/dL is above the recommended level, increasing the risk of atherosclerosis.

C. Serum albumin is within the normal range and does not indicate atherosclerosis risk.

D. HDL cholesterol at 50 mg/dL is considered within a normal protective range and is not indicative of atherosclerosis risk.

E. Triglycerides of 200 mg/dL are also elevated, contributing to the risk for atherosclerosis.

A. Client with serum phosphorus level of 4.5 mg/dL. B. Client with serum magnesium level of 1.1 mEq/L who has tremors and hyperactive deep tendon reflexes. C. Client with serum potassium level of 5.0 mEq/L who is complaining of abdominal cramping. D. Client with serum sodium level of 145 mEq/L who has a dry mouth and is asking for a glass of water.

Correct Answer is B

Explanation

A. Client with serum phosphorus level of 4.5 mg/dL: This is within the normal range for phosphorus (2.5-4.5 mg/dL), and the client does not require immediate assessment.

B. Client with serum magnesium level of 1.1 mEq/L who has tremors and hyperactive deep tendon reflexes: This is the correct answer. A magnesium level of 1.1 mEq/L is below the normal range (1.5-2.5 mEq/L), and symptoms like tremors and hyperactive reflexes indicate hypomagnesemia, which can lead to serious complications such as arrhythmias.

C. Client with serum potassium level of 5.0 mEq/L who is complaining of abdominal cramping: A potassium level of 5.0 mEq/L is within the normal range (3.5-5.0 mEq/L), so this client does not need immediate intervention.

D. Client with serum sodium level of 145 mEq/L who has a dry mouth and is asking for a glass of water: A sodium level of 145 mEq/L is at the upper end of normal (135-145 mEq/L), and the symptoms are likely due to dehydration or a normal response.

View Question and Answer

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

The nurse observes the following EKG. Which lab would the nurse correlate with this finding?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse reviews a client's laboratory results. Which findings would alert the nurse to the possibility of atherosclerosis? (Select all that apply.)

Correct Answer is ["A","B","E"]

Explanation

After receiving change-of-shift report, which client should the nurse assess first?

Correct Answer is B

Explanation

A 20-year-old has a mandatory electrocardiogram (ECG) before participating on a college soccer team and is found to have sinus bradycardia, rate 52. The students blood pressure is 119/76 and denies any health issues. Which action by the nurse is most appropriate?

A nurse is caring for four clients. Which one would the nurse see first?

What would be the priority intervention for the care of the client who is pulseless and has the following rhythm on the monitor?

A nurse prepares to defibrillate a client who is in ventricular fibrillation. Which intervention is appropriate for the nurse to perform prior to defibrillating this client?

After starting the treatment for type 2 diabetes mellitus 6 months earlier, a client is in the office for a follow-up examination. The nurse will monitor which laboratory test to evaluate the clients adherence to the antidiabetic therapy over the past few months?

A client is being discharged home after a large myocardial infarction and subsequent coronary artery bypass grafting surgery. The client's sternal wound has not yet healed. What statement by the client most indicates a higher risk of developing sepsis after discharge?

A 36-yr-old client who has a diagnosis of fibrocystic breast changes calls the nurse in the clinic reporting symptoms. Which information is likely to change the treatment plan?