A patient is admitted to the cardiac unit.


Everyone admitted to the cardiac unit will have an EKG done unless otherwise ordered. This is an example of which type of order?

Rationale for Choice A:

Mixing insulin detemir and insulin aspart in the same syringe is not recommended due to their differing physicochemical properties and potential for altered absorption and action profiles.

It's crucial to follow manufacturer guidelines, as mixing may lead to suboptimal glycemic control or unpredictable insulin activity.

Rationale for Choice B:

The order of mixing insulin detemir and insulin aspart, even if done incorrectly in the same syringe, would not significantly impact the overall contraindication of mixing them.

The primary concern remains the potential for altered pharmacodynamics and pharmacokinetics when these insulins are combined.

Rationale for Choice C:

Drawing up insulin aspart and insulin detemir in separate syringes is the correct procedure.

This approach ensures that each insulin maintains its intended action profile and absorption characteristics, leading to more predictable glycemic control.

It also aligns with best practices and guidelines for insulin administration.

Rationale for Choice D:

While drawing up insulin detemir first in a separate syringe is technically correct, it offers no specific advantage over drawing up insulin aspart first in a separate syringe.

The key principle is to avoid mixing the two insulins in the same syringe.

Choice A rationale:

Secondary erythema refers to redness that develops after the initial injury or insult. It's not the most accurate term to describe an area that doesn't blanch, as blanching specifically assesses for the presence of blood in the tissue. Secondary erythema can be blanchable or nonblanchable, depending on the underlying cause.

Choice C rationale:

Blanchable hyperemia is a reddening of the skin that blanches (turns lighter) when pressed. This indicates that blood is still flowing to the area and that the tissue is not damaged. It's not the correct term for an area that doesn't blanch.

Choice D rationale:

Reactive hyperemia is a temporary increase in blood flow to an area that has been deprived of blood flow. It's often seen after pressure is relieved from a body part. While reactive hyperemia can cause redness, this redness typically blanches when pressed.

Choice B rationale:

Nonblanchable erythema is the most accurate term to describe an area of redness that does not turn lighter in color when pressed with a finger. This indicates that blood is not flowing to the area and that the tissue is likely damaged. Nonblanchable erythema is a significant finding because it can be a sign of a pressure injury (also known as a bedsore or pressure ulcer).

Key points about nonblanchable erythema:

It's a sign of impaired blood flow to the tissue. It's a potential indicator of a pressure injury.

It requires prompt assessment and intervention to prevent further tissue damage.