(A) Appropriate endotracheal tube sizes for adults range from 7.0-8.5 mm. (B) Pneumothorax could be indicated by an absence of breath sounds on the affected side. However, in a recently intubated client, the first priority would be to consider tube malposition. (C) During intubation, the right mainstem bronchus can be inadvertently entered if the endotracheal tube is inserted too far. Left mainstem bronchus intubation almost never occurs because of the angle of the left mainstem bronchus. (D) Breath sounds for someone with pneumonia may be decreased over the areas of consolidation. However, in a recently intubated client, the first priority would be to consider tube malposition.

Explanation
(A) An enlarged penis is not a sign of chlamydia. (B) Secondary lymphadenitis is a complication of lymphogranuloma venereum. (C) Untreated chlamydial infection can spread from the urethra, causing epididymitis, which presents as a tender, scrotal swelling. (D) Hepatomegaly is not a complication.

Explanation/Reference:
Explanation:
(A) Benztropine is prescribed to decrease or alleviate extrapyramidal side effects of major tranquilizers.
Smooth, coordinated voluntary movement indicates minimal extrapyramidal side effects. (B) Tremors are an extrapyramidal side effect. (C) Rigidity is an extrapyramidal side effect. (D) Muscle weakness is an extrapyramidal side effect.

Explanation
(A) The client has lithium toxicity, and the nurse must withhold further dosages. (B) Because of her level of toxicity, further lithium could cause coma and death. The nurse needs further orders from the physician to stabilize the client's lithium level. (C) Ensuring adequate intake of sodium chloride will promote excretion of lithium and will assist in managing the client's lithiumtoxicity. (D) A lithium blood level must be drawn immediately to determine the seriousness of the toxicity and to provide the physician with data for medical orders.

Explanation/Reference:
Explanation:
(A) MgSO4 is classified as an anticonvulsant drug. In preeclampsia management, MgSO4 is used for prevention of seizures. (B) MgSO4 has been used to inhibit hyperactive labor, but results are questionable.
(C) Negative side effects such as respiratory depression should not be confused with generalized sedation. (D) MgSO4 does not affect lung maturity. The infant should be assessed for neuromuscular and respiratory depression.