A nurse is caring for a client who has heart failure and whose telemetry reading displays a flattening of the T wave. Which of the following laboratory results should the nurse anticipate as the cause of this ECG change?

Correct Answer: A

Rationale: The correct answer is A: Potassium 2.8 mEq/L. Flattening of the T wave on ECG is a common sign of hypokalemia, which is a low potassium level. Potassium plays a crucial role in regulating the electrical activity of the heart, and low levels can lead to ECG changes such as T wave flattening. Therefore, in a client with heart failure displaying this ECG change, a low potassium level is the likely cause. Summary: - Choice B (Potassium 5.5 mEq/L) is incorrect as it is within the normal range. - Choice C (Calcium 8.0 mg/dL) is incorrect as calcium levels do not typically cause T wave changes. - Choice D (Magnesium 1.5 mEq/L) is incorrect as low magnesium levels can cause T wave changes, but in this scenario, potassium is the more likely cause based on the ECG finding.

Correct Answer: A

Rationale: The correct answer is A: Take in the morning to mimic the body's natural corticosteroid levels. Corticosteroids should be taken in the morning as it aligns with the body's natural cortisol production, reducing the risk of disrupting the sleep-wake cycle. Administering on an empty stomach (B) can cause gastric irritation. Avoiding water with corticosteroids (C) is unnecessary. Crushing enteric-coated tablets (D) can alter the drug's absorption pattern.

Correct Answer: A

Rationale: The correct answer is A: Cyclophosphamide. Cyclophosphamide is an alkylating agent that can cause cellular changes in the cervix, leading to false positive pap test results. Methotrexate, Leflunomide, and Adalimumab do not typically affect pap test results. Therefore, Cyclophosphamide is the most likely medication to cause a false positive pap test due to its known effects on cervical cells.

Correct Answer: A

Rationale: The correct answer is A because the statement "I don’t need to go to the hospital after using it" indicates a misunderstanding of the seriousness of anaphylaxis, which requires immediate medical attention. - Choice B is correct as carrying two autoinjectors is recommended in case the first one malfunctions or a second dose is needed. - Choice C is correct as it demonstrates proper medication management by noting the expiration date. - Choice D is incorrect as injecting through clothes is acceptable in emergencies to save time. In summary, choice A is incorrect as it shows a lack of understanding of the need for further medical care after using an epinephrine autoinjector.

Correct Answer: C

Rationale: The correct answer is C: Hypochromic, microcytic. In iron deficiency anemia, there is a decrease in hemoglobin content (hypochromic) and a decrease in red blood cell size (microcytic) due to insufficient iron for hemoglobin synthesis. Normochromic (choice A) and normocytic (choice B) would not be characteristic of iron deficiency anemia. Hypochromic, macrocytic (choice D) is more indicative of a different type of anemia, such as megaloblastic anemia caused by vitamin B12 or folate deficiency.