A nurse is reviewing the ABG values of a client. The client has a pH of 7.2, PaCO2 of 60 mm Hg, and HCO3 of 25 mEq/L. The nurse should identify that the client has which of the following acid-base imbalances?

A. Assess peripheral circulation hourly. This is correct because clients with SCD are at risk of vaso-occlusive crisis, which can impair blood flow to the extremities and cause tissue ischemia and necrosis. The nurse should monitor for signs of poor circulation such as pallor, coolness, numbness, or pain.

B. Assess the client's mouth every 8 hr. This is correct because clients with SCD are prone to oral ulcers, infections, and dental problems due to chronic anemia and reduced oxygen delivery to the oral mucosa. The nurse should inspect the mouth for lesions, bleeding, inflammation, or infection and provide oral hygiene as needed.

C. Use humidification with oxygen therapy. Administer IV fluids. This is correct because clients with SCD need adequate hydration and oxygenation to prevent sickling of red blood cells and further complications. Humidification helps moisten the airways and prevent dehydration of the mucous membranes. IV fluids help maintain fluid and electrolyte balance and reduce blood viscosity.

D. Raise the knee position on the client's bed. This is incorrect because this can impede venous return and worsen peripheral circulation. The nurse should keep the client's extremities in a neutral position and avoid tight or restrictive clothing or devices.

E. Use an automated blood pressure cuff on the client's arm. Prepare for platelet transfusion. This is incorrect because this can cause mechanical trauma to the arm and trigger a vaso-occlusive crisis. The nurse should use a manual blood pressure cuff and avoid applying pressure to the arm. Platelet transfusion is not indicated for clients with SCD unless they have thrombocytopenia or bleeding.

- Capillary refill time is a test that measures how quickly the blood returns to the tissues after pressure is applied and released on a nailbed or a fingertip. It is an indicator of peripheral circulation and tissue perfusion.
- To perform the capillary refill test, the examiner should press firmly on the nailbed or fingertip for a few seconds, then release the pressure and observe how long it takes for the normal color to return. The normal capillary refill time is less than 2 seconds .
- In the photo, the practical nurse (PN) applies and then releases pressure to a client's fingernail. Normal nail color returns in 2 seconds, which indicates a normal capillary refill time and adequate peripheral circulation. This is a normal and expected finding that does not require any further action, except for documentation.
- Therefore, option D is the correct answer, as it reflects the appropriate and standard nursing practice of documenting any assessment findings in the client's chart. Option D also implies that the PN does not need to report, observe, or repeat anything else related to the capillary refill test, as it was done correctly and yielded normal results.

- Options A, B, and C are incorrect answers, as they do not reflect the appropriate or necessary actions for the PN to take after performing a normal capillary refill test.
Option A is incorrect because there are no abnormal findings to report to the charge nurse, as the capillary refill time was normal.
Option B is incorrect because blanching of the nailbed is what happens when pressure is applied, not when
it is released, and it is not an abnormal finding.
Option C is incorrect because repeating the process with a different nailbed is not necessary, as the capillary refill time was normal on the first nailbed.