Nursing Elites

1. A client receiving warfarin (Coumadin) therapy should have which of the following laboratory results reviewed to evaluate the effectiveness of the therapy?

• A. Complete blood count (CBC).
• B. Prothrombin time (PT).
• C. International normalized ratio (INR).
• D. Partial thromboplastin time (PTT).

Correct answer: C

Rationale: The correct answer is C: International normalized ratio (INR). The INR is the most appropriate laboratory result to review when evaluating the effectiveness of warfarin (Coumadin) therapy. Warfarin is an anticoagulant medication, and the INR helps determine if the dosage is within a therapeutic range to prevent clotting or bleeding complications. Choice A, a Complete Blood Count (CBC), provides information about the cellular components of blood but does not directly assess the anticoagulant effects of warfarin. Choice B, Prothrombin time (PT), measures the time it takes for blood to clot but is not as specific for monitoring warfarin therapy as the INR. Choice D, Partial Thromboplastin Time (PTT), evaluates the intrinsic pathway of coagulation and is not the primary test used to monitor warfarin therapy.

2. A patient’s serum osmolality is 305 mOsm/kg. Which term describes this patient’s body fluid osmolality?

• A. Iso-osmolar
• B. Hypo-osmolar
• C. Hyperosmolar
• D. Isotonic

Correct answer: C

Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.

3. A client with early breast cancer receives the results of a breast biopsy and asks the nurse to explain the meaning of staging and the type of receptors found on the cancer cells. Which explanation should the nurse provide?

• A. Lymph node involvement is not significant.
• B. Small tumors are aggressive and indicate poor prognosis.
• C. The tumor's estrogen receptor guides treatment options.
• D. Stage I indicates metastasis.

Correct answer: C

Rationale: Treatment decisions and prediction of prognosis are related to the tumor's receptor status, such as estrogen and progesterone receptor status which commonly are well-differentiated, have a lower chance of recurrence, and are receptive to hormonal therapy. Tumor staging designates tumor size and spread of breast cancer cells into axillary lymph nodes, which is one of the most important prognostic factors in early-stage breast cancer.

4. After checking the urinary drainage system for kinks in the tubing, the nurse determines that a client who has returned from the post-anesthesia care has a dark, concentrated urinary output of 54 ml for the last 2 hours. What priority nursing action should be implemented?

• A. Report the findings to the surgeon.
• B. Irrigate the indwelling urinary catheter.
• C. Apply manual pressure to the bladder.
• D. Increase the IV flow rate for 15 minutes.

Correct answer: A

Rationale: In this situation, the nurse's priority action should be to report the findings to the surgeon. An adult should typically produce about 60 ml of urine per hour, so a dark, concentrated, and low urine output of 54 ml over 2 hours raises concerns. This change in urine output may indicate issues such as dehydration, renal problems, or inadequate fluid intake. Reporting this finding to the surgeon is crucial to ensure appropriate evaluation and intervention. Irrigating the catheter, applying manual pressure to the bladder, or increasing the IV flow rate are not appropriate actions based on the information provided and could potentially worsen the situation.

5. A nursing assistant is measuring the blood pressure (BP) of a hypertensive client while a nurse observes. Which action on the part of the assistant would interfere with accurate measurement and prompt the nurse to intervene? Select all that apply.

• A. Measuring the BP after the client has sat quietly for 5 minutes
• B. Having the client sit with the arm bared and supported at heart level
• C. Using a cuff with a rubber bladder that encircles less than 80% of the limb
• D. Measuring the BP after the client reports that he just drank a cup of coffee

Correct answer: C

Rationale: To ensure accurate blood pressure (BP) measurement, the cuff used should have a rubber bladder that encircles at least 80% of the limb being measured. This ensures proper compression and accurate readings. Choices A and B are correct practices as it is recommended to measure BP after the client has sat quietly for 5 minutes and to have the client sit with the arm bared and supported at heart level. Choice D is also a correct reason for intervention as the client should not have consumed caffeine or smoked tobacco within 30 minutes before BP measurement, as it can affect the accuracy of the reading.

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