A nurse in an emergency department is reviewing the medical record of a client who is having an acute myocardial infarction.

Which of the following findings places the client at risk if he receives alteplase?

Nail polish remover contains acetone, which is a flammable substance that can ignite in the presence of oxygen. Using nail polish remover around the client can increase the risk of fire and burn injuries.

Choice A is wrong because synthetic fabrics can generate static electricity, which can also cause sparks and ignite oxygen.

The client’s bedding should be made of cotton or wool, which are natural fabrics that do not produce static electricity.

Choice B is wrong because petroleum jelly is a petroleum-based product that can react with oxygen and cause skin irritation or burns.

The client should use water-based moisturizers to soothe the mucous membranes.

Choice C is wrong because alcohol-based cleaning products are also flammable and can cause fires or explosions when exposed to oxygen.

The client should use mild soap and water to clean the equipment, and follow the manufacturer’s instructions for maintenance.

Some general safety tips for home oxygen therapy are:

• Keep away from heat and flame, such as candles, matches, lighters, stoves, fireplaces, etc.
• Do not smoke or allow others to smoke near the oxygen source
• Do not use aerosols, vapor rubs, oils, or other products that contain flammable substances near the oxygen source
• Store oxygen tanks or cylinders in a well-ventilated area away from direct sunlight and heat sources
• Secure oxygen tanks or cylinders to prevent them from falling or rolling
• Use the exact rate of oxygen prescribed by the doctor for each activity
• Check the oxygen gauge or level regularly and call the medical supply company when it is low
• Use a humidifier bottle if prescribed by the doctor to prevent dryness of the mucous membranes
• Change the nasal cannula, mask, and tubing as instructed by the medical supply company to prevent

This is because coarctation of the aorta is a congenital condition where the aorta is narrow, usually in the area where the ductus arteriosus inserts. This causes a decrease in blood flow to the lower body, resulting in weak or absent pulses in the femoral arteries.

The other choices are incorrect for the following reasons:

Choice A is not a typical sign of coarctation of the aorta.

Nosebleeds can be caused by many factors, such as dry air, allergies, trauma, or bleeding disorders.

Choice B is also not a common finding in coarctation of the aorta. In fact, patients with this condition may have high blood pressure in the upper extremities due to the increased resistance of the narrowed aorta.

Choice D is not directly related to coarctation of the aorta.

Increased intracranial pressure can be caused by various conditions that affect the brain, such as head injury, stroke, infection, or tumor.

Normal ranges for blood pressure and pulse vary depending on age, sex, and health status. However, some general guidelines are:

• Blood pressure: less than 120/80 mmHg for adults; less than 95/65 mmHg for infants.
• Pulse: 60 to 100 beats per minute for adults; 100 to 160 beats per minute for infants.