A nurse is teaching a prenatal class about infection prevention at a community center.

Which of the following statements by a client indicates an understanding of the teaching

Answer:D. Troponin T test

Rationale:

A. Creatine kinase (CK) test: While creatine kinase isoenzymes, including CK-MB, can be elevated following myocardial infarction (MI), they are not specific to cardiac muscle injury. CK is found in various tissues throughout the body, so elevated levels can also indicate damage to skeletal muscle or brain tissue, among other sources.

B. Creatine kinase-myocardial band (CK-MB) test: CK-MB is a cardiac-specific isoform of creatine kinase, and elevated levels can indicate myocardial injury, particularly in the context of an acute MI. However, troponin T is a more sensitive and specific marker for myocardial injury.

C. Brain natriuretic peptide (BNP) test: Brain natriuretic peptide is primarily used in the diagnosis and management of heart failure. While elevated BNP levels can indicate heart muscle strain or stress, they are not specific markers for acute myocardial infarction or early injury to the cardiac muscle.

D. Troponin T test: This is the correct answer. Troponin T is a highly specific marker for cardiac muscle injury. Elevated troponin levels can be detected within hours of myocardial infarction and persist for several days, making it an essential tool in the diagnosis of acute coronary syndromes, including myocardial infarction. Troponin T is considered one of the gold standard biomarkers for detecting early injury to the cardiac muscle.

A, B, C, D, and H. Here is why:.

• A. Heart rate: The client’s heart rate is elevated at 118/min, which could indicate blood loss, dehydration, pain, anxiety, or infection. This finding requires immediate follow-up to assess the cause and intervene as needed.
• B. Current medications: The client is taking ibuprofen 800 mg three times daily PRN for arthritis pain. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can cause gastric irritation, ulceration, and bleeding. This finding requires immediate follow-up to evaluate the client’s pain level, medication use, and possible alternatives to NSAIDs.
• C. Blood pressure: The client’s blood pressure is low at 90/50 mm Hg, which could indicate hypovolemia, shock, or cardiac dysfunction. This finding requires immediate follow-up to monitor the client’s fluid status, perfusion, and organ function.
• D. Stool results: The client’s stool tested positive for occult blood and H. pylori bacteria. Occult blood indicates gastrointestinal bleeding, which could be related to the client’s abdominal pain and weight loss. H. pylori is a common cause of peptic ulcer disease, which can also cause bleeding and pain. This finding requires immediate follow-up to confirm the diagnosis and initiate treatment with antibiotics and acid-suppressing drugs.

• H. Hemoglobin and hematocrit: The client’s hemoglobin and hematocrit are low at 9.1 g/dL and 27%, respectively. These values indicate anemia, which could be caused by chronic blood loss, nutritional deficiency, or bone marrow suppression. This finding requires immediate follow-up to determine the etiology and severity of the anemia and provide appropriate therapy such as blood transfusion, iron supplementation, or erythropoietin.

The other findings are not as urgent as the ones above:.

• E. Respiratory rate: The client’s respiratory rate is normal at 18/min. There is no evidence of respiratory distress or hypoxia.
• F. WBC count: The client’s WBC count is normal at 6,700/mm3. There is no indication of infection or inflammation.
• G. Temperature: The client’s temperature is slightly elevated at 37.5° C (99.5° F), but not enough to warrant immediate concern. It could be due to stress, dehydration, or a mild infection. The nurse should monitor the temperature trend and report any significant changes or signs of sepsis.