Give the pathophysiology for the cause of the following abnormal values: BUN, NH3, and WBC
BUN: elevated 2o to dehydration and excessive NH3 (making more BUN because of the elevated NH3).
NH3: elevated 2o to blood in the gut being digested by bacteria and releasing NH3 . The NH3 is absorbed across the mucosa and increases blood ammonia.
WBC: slightly elevated 2o to GG's stress.
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The nurse is observing the client's rhythm strip on the cardiorespiratory monitor when suddenly the P wave disappears. The nurse interprets this to mean:
1. The ventricle is no longer contracting. 2. Only the left ventricle is contracting. 3. The atria are not contracting. 4. The client's heart is no longer ejecting blood.
In which situation might surgery be delayed?
a. The patient has taken Dilantin today. b. An illegible signature is on the consent form.. c. The patient is still taking anticoagulants. d. The admission office is unable to confirm insurance coverage.
A patient who has recently begun taking carbamazepine [Equetro] for bipolar disorder reports having vertigo and headaches. Which action by the nurse is appropriate?
a. Ask the provider whether another medica-tion can be used for this patient, because the patient is showing signs of toxicity. b. Contact the provider to request a complete blood count (CBC) to evaluate for other, more serious side effects. c. Reassure the patient that these effects oc-cur early in treatment and will resolve over time. d. Review the patient's chart for cytochrome P450 enzymes to see whether an increased dose is needed.
A client complains of gingival hypertrophy and weight loss. The nurse knows that this patient has a history of petit mal seizures. What drug is most likely responsible for the client's pathophysiological process?
1. Phenytoin (Dilantin) 2. Ethosuximide (Zarontin) 3. Amobarbital (Amytal) 4. Gabapentin (Neurontin)