A nurse is reviewing the arterial blood gas values for a client. The nurse should recognize that the values indicate which of the following acid-base imbalances?

The values are:

• pH: 7.56
• PaCO2: 55 mmHg
• HCO3: 33 mEq/L

Normal ranges:

• pH: 7.35-7.45
• PaCO2: 35-45 mmHg
• HCO3: 22-28 mEq/L

Choice A Reason:

Listening to the client’s speech is not a method used to assess cranial nerve V. This method is more relevant for assessing cranial nerves IX (Glossopharyngeal) and X (Vagus), which are involved in speech and swallowing.

Choice B Reason:

Clenching the teeth is a method used to assess the motor function of cranial nerve V (the trigeminal nerve). The trigeminal nerve is responsible for the movement of the muscles involved in chewing. When a client clenches their teeth, the nurse can palpate the masseter and temporal muscles to check for strength and symmetry. This helps determine if there are any abnormalities in the motor function of the trigeminal nerve.

Choice C Reason:

Asking the client to read a Snellen chart is a method used to assess cranial nerve II (Optic), which is responsible for vision. This method does not assess cranial nerve V.

Choice D Reason:

Asking the client to raise his eyebrows is a method used to assess cranial nerve VII (Facial), which controls facial expressions. This method is not used to assess cranial nerve V.

Choice A Reason:

Sclera is correct. The sclera, or the white part of the eye, is a reliable site to assess for jaundice, especially in dark-skinned individuals. Jaundice causes a yellowish discoloration of the sclera due to the accumulation of bilirubin in the blood. This yellowing is often more noticeable in the sclera than in other parts of the body.

Choice B Reason:

Dorsal surface of the foot is incorrect. The dorsal surface of the foot is not a reliable site for assessing jaundice, particularly in dark-skinned individuals. The skin on the feet may not show the yellow discoloration as clearly as the sclera.

Choice C Reason:

Pinnae of the ears is incorrect. The pinnae, or outer parts of the ears, are not typically used to assess for jaundice. The skin in this area may not show the yellow discoloration as effectively as the sclera.

Choice D Reason:

Palmar surface of the hand is incorrect. While the palms can sometimes show signs of jaundice, they are not as reliable as the sclera. The yellow discoloration may be less noticeable on the palms, especially in dark-skinned individuals.