Explanation/Reference:
Explanation:
(A) This value is a low blood level. (B) This value is a toxic blood level. (C) This value is a low blood level.
(D) This value is the level at which most clients are maintained, and toxicity may occur if the level increases. The client should be monitored closely for symptoms, because some clients become toxic even at this level.

(A) This response reinforces the client's maladaptive behavior, thereby contributing to the client's risk. (B) Ultimatums are not therapeutic. (C) This comment invites an argument because it puts the client on the defensive and stabs at her self-esteem, which is already compromised. (D) Setting limits assures the client that staff has genuine concern for her safety and well-being. Giving her an actual choice will give the client an increased sense of control over her life and avoid an argument or power struggle.

Explanation
(A) The lungs are responsible for regulation of CO2, and this parameter primarily reflects respiratory function.
(B) CO2 content of the blood is an indirect measure of respiratory function. (C) HCO3 is a measure of kidney function only and is important in acid-base balance. (D) Base excess represents the excess of HCO3 and is not reflective of respiratory function.

(A) The prone position reduces pressure and tension on the sac. Primary nursing goals are to prevent trauma and infection of the sac. (B) The supine position exerts pressure on the sac. (C) Newborns usually cannot maintain side-lying position. (D) The semi- Fowler position exerts pressure on the sac.

Explanation/Reference:
Explanation:
(A) The level of consciousness is not affected by elevated potassium levels. (B) An electrocardiogram (EKG) can tell the nurse whether this client is experiencing any cardiac dysfunction or arrhythmias related to the elevated potassium level. (C) Measurement of the urine output is not a priority nursing action at this time. (D) The client's serum potassium values for the past several days may provide information about his renal function, but they are not a priority at this time.