Explanation
(A) These are general diagnostic blood studies (usually done on admission), but they are not reliable indicators of lithium therapy clearance. (B) These are the primary diagnostic tests to determine kidney functioning.
Because lithium is excreted through the kidneys and because it can be very toxic, adequate renal function must be ascertained before therapy begins. (C) These are diagnostic blood tests used to determine the presence of endocrine (not renal) dysfunction. (D) These are other types of diagnostic procedures used to determine musculoskeletal, neural, and cardiac (rather than renal) functioning.

(A) The side effects of neomycin sulfate include rash, urticaria, nephrotoxicity, and ototoxicity. (B) The side effects of mafenide acetate include bone marrow suppression, hemolytic anemia, eosinophilia, and metabolic acidosis. The hyperventilation is a compensatory response to the metabolic acidosis. (C) The side effects of silver sulfadiazine include rash, itching, leukopenia, and decreased renal function. (D) The primary side effect of povidone- iodine is decreased renal function.

Section: Questions Set A
Explanation:
(A, B, D) These occur in both tension pneumothorax and open pneumothorax. (C) The tension pneumothorax acts like a one-way valve so that the pneumothorax increases with each breath. Eventually, it occupies enough space to shift mediastinal tissue toward the unaffected side away from the midline. Tracheal deviation, movement of point of maximum impulse, and decreased cardiac output will occur. The other three options will occur in both types of pneumothorax.

Explanation/Reference:
Explanation:
(A) Lorazepam is an antianxiety agent that produces muscle relaxation and inhibits cortical and limbic arousal. It has no action in the basal ganglia of the brain. (B) Benztropine acts to reduce EPS by blocking excess CNS cholinergic activity associated with dopamine deficiency in the basal ganglia by displacing acetylcholine at the receptor site. (C) Thiothixene is an antipsychotic known to block dopamine in the limbic system, thereby causing EPS. (D) Flurazepan is a hypnotic that acts in the limbic system, thalamus, and hypothalamus of the CNS to produce sleep. It has no known action in the vasal ganglia.

(A) This answer is incorrect. Encouraging discussion of the voices will reinforce the delusion. (B) This answer is correct. The nurse should appropriately present reality. (C) This answer is incorrect. Showing interest would reinforce the delusional system. (D) This answer is incorrect. The statement only indicates that the client is hearing voices. It does not state that the client is acting out.