A nurse is preparing to administer chlordiazepoxide 10 mg PO tid. The amount available is chlordiazepoxide 5 mg/capsule. How many capsules should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

(A) Decreased stimulation of the sympathetic nervous system (SNS): The sympathetic nervous system (SNS) plays a key role in regulating blood pressure. When the SNS is stimulated, it causes vasoconstriction, or narrowing of the blood vessels, which increases blood pressure. Therefore, decreased stimulation of the SNS would typically lead to vasodilation, or widening of the blood vessels, which would lower blood pressure, not increase it.

(B) Decreased elasticity of blood vessels: As people age, their blood vessels can lose elasticity, which can lead to hypertension. When blood vessels are elastic, they can easily expand and contract with each heartbeat, maintaining a healthy blood pressure. But when they become stiff or rigid, they can’t expand as easily, causing the pressure inside to increase.

(c) Increased peripheral vascular resistance (PVR): Peripheral vascular resistance is the resistance that blood must overcome to flow through the blood vessels. The more resistance, the harder the heart has to work to pump blood through the body, which can lead to increased blood pressure. Factors that can increase PVR include vasoconstriction, or narrowing of the blood vessels, and increased blood viscosity, or thickness.

(D) Decreased fluid volume: Decreased fluid volume, or hypovolemia, would typically lead to a decrease in blood pressure, not an increase. This is because blood pressure is directly related to the volume of blood in the blood vessels. When there’s less blood, the pressure inside the blood vessels is usually lower.

(E) Increased blood viscosity: Blood viscosity refers to the thickness of the blood. When blood is thicker, it’s harder for it to flow through the blood vessels, which increases the resistance to blood flow, leading to increased blood pressure.

(A) Determine the client’s blood pressure 1 min after each position change: While it’s important to check the client’s blood pressure after each position change when assessing for orthostatic hypotension, this is not the first step. The nurse should first establish a baseline blood pressure reading with the client in a supine position.

(B) Place the client in a sitting position: Although the nurse will eventually need to check the client’s blood pressure in a sitting position, the first step is to get a baseline reading with the client in a supine position.

(C) Assist the client into a standing position: The nurse will eventually assist the client into a standing position to check for changes in blood pressure, but this is not the first step. The initial step is to get a baseline reading with the client in a supine position.

(D) Check the blood pressure with the client in a supine position: This is the most appropriate first step. When checking for orthostatic hypotension, the nurse should first check the client’s blood pressure while they are lying flat (supine). This provides a baseline reading against which subsequent readings (taken when the client is sitting and standing) can be compared. If there’s a significant drop in blood pressure upon standing, this could indicate orthostatic hypotension.