Nursing Elites

1. The nurse is caring for a client with a serum potassium level of 3.5 mEq/L. The client is placed on a cardiac monitor and receives 40 mEq potassium chloride in 1000 ml of 5% dextrose in water IV. Which of the following EKG patterns indicates to the nurse that the infusions should be discontinued?

• A. Narrowed QRS complex
• B. Shortened "PR"? interval
• C. Tall peaked "T"? waves
• D. Prominent "U"? waves

Correct answer: C

Rationale: A tall peaked T wave is a characteristic EKG pattern associated with hyperkalemia. Hyperkalemia refers to high levels of potassium in the blood, which can lead to cardiac arrhythmias and other serious complications. Tall peaked T waves are a red flag for potential cardiac issues and can indicate the need to discontinue potassium infusions. The other choices, such as narrowed QRS complex, shortened "PR"? interval, and prominent "U"? waves, are not typically associated with hyperkalemia. Therefore, recognizing tall peaked T waves is crucial for the nurse to take prompt action in managing the client's condition.

2. A systolic blood pressure of 145 mm Hg is classified as:

• A. Normotensive
• B. Prehypertension
• C. Stage I hypertension
• D. Stage II hypertension

Correct answer: C

Rationale: A systolic blood pressure of 145 mm Hg falls within the range of 140-159 mm Hg, which is classified as Stage I hypertension. Normotensive individuals have a systolic blood pressure less than 120 mm Hg, making choice A incorrect. Prehypertension is characterized by a systolic blood pressure ranging from 120-139 mm Hg, excluding choice B. Stage II hypertension is diagnosed when the systolic blood pressure is greater than 160 mm Hg, making choice D incorrect. Therefore, the correct classification for a systolic blood pressure of 145 mm Hg is Stage I hypertension.

3. What preparation should be made for a client undergoing a KUB (Kidney, Ureter, Bladder) radiography test?

• A. Client must be NPO before the examination
• B. Enema should be administered before the examination
• C. Medicate the client with furosemide 20 mg IV 30 minutes before the examination
• D. No special orders are necessary for this examination

Correct answer: D

Rationale: The correct answer is that no special orders are necessary for a KUB radiography test. It is important to inform the client to remove any clothing, jewelry, or objects that may interfere with the test. Option A is incorrect because there is no need for the client to be NPO before this examination. Option B is incorrect as enemas are not routinely administered prior to a KUB radiography test. Option C is incorrect as there is no need to medicate the client with furosemide before this examination.

4. A patient has come into the emergency room after an injury at work in which their upper body was pinned between two pieces of equipment. The nurse notes bruising in the upper abdomen and chest. The patient is complaining of sharp chest pain, having difficulty breathing, and their trachea is deviated to the left side. Which of the following conditions are these symptoms most closely associated with?

• A. Left-sided pneumothorax
• B. Pleural effusion
• C. Atelectasis
• D. Right-sided pneumothorax

Correct answer: D

Rationale: The patient is most likely suffering from a right-sided pneumothorax. Symptoms of a pneumothorax include sharp chest pain, difficulties with breathing, decreased vocal fremitus, absent breath sounds, and tracheal shift to the opposite of the affected side. In this case, the patient's trachea is deviated to the left side, indicating a right-sided pneumothorax. Choices A, B, and C can be eliminated as they do not present with the specific symptoms described in the scenario. Left-sided pneumothorax would not cause tracheal deviation to the left side. Pleural effusion typically presents with dull chest pain and decreased breath sounds, not sharp chest pain and tracheal deviation. Atelectasis would not cause tracheal deviation and is more associated with lung collapse rather than air accumulation in the pleural space.

5. A patient with acute dyspnea is scheduled for a spiral computed tomography (CT) scan. Which information obtained by the nurse is a priority to communicate to the health care provider before the CT?

• A. Allergy to shellfish
• B. Apical pulse of 104
• C. Respiratory rate of 30
• D. Oxygen saturation of 90%

Correct answer: A

Rationale: Because iodine-based contrast media is used during a spiral CT, the patient may need to have the CT scan without contrast or be premedicated before injection of the contrast media. The increased pulse, low oxygen saturation, and tachypnea all indicate a need for further assessment or intervention but do not indicate a need to modify the CT procedure.

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