(A) This position is indicative of a possible meningeal irritation or infection such as meningitis. (B) This position is seen most frequently in infants who have had an injury to the sternocleidomastoid muscle. (C) Most infants aged 4 months and older are able to maintain this position. (D) Infants older than 6 months of age should not have significant head lag. This is a sign of cerebral injury and should be referred for further evaluation.

(A) Respiratory alkalosis is determined by elevated pH and low PaCO2. (B) Respiratory acidosis is determined by low pH and elevated PaCO2. (C) Metabolic alkalosis is determined by elevated pH and HCO3. (D) Metabolic acidosis is determined by low pH and HCO3.

Section: Questions Set D
Explanation:
(A) Dressing changes are done as necessary for bleeding. However, frequently, post-thyroidectomy bleeding may not be visible on the dressing, but blood may drain down the back of the neck by gravity. (B) Narcotics are administered for acute pain as necessary. They are not necessarily given on return of the client to her room.
(C) The most serious postthyroidectomy complication is ineffective airway and breathing pattern related to tracheal compression and edema. A tracheostomy set, O2, and suction should be available at bedside for at least the first 24 hours postoperatively. (D) Impaired verbal communication may occur due to laryngeal edema or nerve damage, but most commonly, it occurs due to endotracheal intubation. The client is usually able to communicate but is hoarse.

Explanation
(A) Humulin N cannot be administered IV. (B) NPH insulin cannot be administered IV. (C) Regular insulin is the only insulin that can be administered IV. (D) Lente insulin cannot be administered IV.

Explanation/Reference:
Explanation:
(A) Basilar skull fracture may cause dural lacerations, which result in CSF leaking from the ears or nose.
Insertion of a tube could lead to CSF going into the brain tissue or sinuses. (B) Tamponading flow could worsen the problem and increase ICP. (C) Suction could increase brain damage and dislocate tissue. (D) Testing the fluid from the nares would determine the presence of CSF. Elevation of the head, notification of the medical staff, and prophylactic antibiotics are appropriate therapy.