Which vowel is most commonly used when combining word parts?

Choice A rationale:

Diastolic pressure represents the pressure in the arteries when the heart is at rest between contractions. It specifically measures the force of blood against the arterial walls when both the atria and ventricles are relaxed, allowing the heart to fill with blood. Diastolic pressure is the bottom number in a blood pressure reading (e.g., 120/80 mmHg), indicating the pressure in the arteries during the heart's resting phase. Elevated diastolic pressure is an important indicator of increased risk for cardiovascular diseases, such as hypertension.

Choice B rationale:

This statement describes systolic blood pressure, which measures the pressure in the arteries when the heart's ventricles contract and pump blood into the circulation. Systolic pressure is the top number in a blood pressure reading (e.g., 120/80 mmHg) and represents the highest pressure reached in the arteries during a cardiac cycle.

Choice C rationale:

This description is not accurate for either diastolic or systolic pressure. Both atria and ventricles do not contract simultaneously; they follow a specific sequence to ensure effective pumping of blood through the heart.

Choice D rationale:

This statement is incorrect as it does not align with the definitions of diastolic or systolic blood pressure. Diastolic pressure specifically measures the pressure in the arteries during the heart's resting phase, not when the ventricles relax. .

Choice A rationale:

Using a fire extinguisher should not be the nurse's first action in this situation. The nurse's priority is to ensure the safety of the clients and staff in the vicinity. Attempting to use a fire extinguisher might not be effective and can potentially cause harm, especially if the fire spreads quickly.

Choice B rationale:

Activating the fire alarm is the nurse's priority in this situation. By activating the fire alarm, the nurse can alert everyone in the facility about the fire, ensuring that people are aware and can evacuate safely. This action initiates the facility's fire response protocol, leading to a quicker and organized response to the emergency.

Choice C rationale:

Moving clients to safety is important, but it is not the nurse's immediate priority in this situation. Activating the fire alarm should be done first to ensure that everyone in the facility is aware of the danger, and then the nurse can assist in moving clients to safety if necessary.