A client is ordered to receive atropine 0.3 mg IV stat. Atropine 0.4 mg per mL is available. How many milliliters will the nurse administer?

A. International normalized ratio (INR):

INR is a test used to monitor the effectiveness of anticoagulant therapy, particularly drugs like warfarin. It measures the time it takes for blood to clot. It's not directly related to assessing heart failure but is more associated with monitoring anticoagulation status.

B. Brain natriuretic peptide (BNP):

BNP is a peptide released by the heart in response to increased pressure and volume in the heart, often seen in heart failure. Elevated BNP levels can indicate the presence of heart failure. It's a useful diagnostic marker for heart failure.

C. Troponin:

Troponin is a protein released into the blood when there is damage to the heart muscle, usually during a heart attack. It is not specific to heart failure but is commonly used to diagnose myocardial infarction (heart attack).

D. Creatinine:

Creatinine is a waste product that comes from the normal wear and tear on muscles. While elevated creatinine levels can be seen in conditions affecting kidney function, it's not a direct marker for assessing heart failure. However, kidney function is often evaluated in conjunction with heart failure assessments.

A. "Did you have rheumatic fever as a child?"

Rheumatic fever is an inflammatory condition that can affect the heart, especially the heart valves. Rheumatic fever is a known risk factor for the development of valvular heart disease. Asking about a history of rheumatic fever helps identify a potential cause for valve malfunction.

B. "Do you have a family history of valve problems?"

Family history can be relevant in understanding genetic predispositions to certain cardiac conditions. While it may contribute to the overall assessment of cardiac risk, it may not be as directly linked to valve malfunction as a history of rheumatic fever.

C. "Do you have a history of MRSA?"

MRSA (Methicillin-resistant Staphylococcus aureus) is a type of bacterial infection and is not directly associated with valve malfunction. This question may be relevant for other aspects of the client's health but is not specific to ruling out cardiac issues related to valve malfunction.

D. "What over-the-counter medications do you take?"

While knowing the medications a client takes is important for a comprehensive assessment, asking about over-the-counter medications may not be as directly related to ruling out cardiac issues related to valve malfunction. It is more relevant for assessing potential interactions or effects on cardiovascular health.