Explanation/Reference:
Explanation:
(A) The most serious adverse reactions of MAO inhibitors involve blood pressure and ingestion of tyramine-containing foods, which may provoke a hypertensive crisis. (B) MAO inhibitors cause adverse reactions affecting the central nervous system and serious adverse reactions involving blood pressure. (C) MAO inhibits false neurotransmitters (phenylalanines) and may produce hypotensive reactions from gradual accumulation of these neurotransmitters. (D) The most serious adverse reactions of MAO inhibitors involve blood pressure.

Explanation
(A) Giving too high a concentration of O2 to a client with em-physema may remove his stimulus to breathe.
(B) The client should sit forward with his hands on his knees or an overbed table and with shoulders elevated.
(C) Pursed-lip breathing helps the client to blow off CO2 and to keep air passages open. (D) Covering the face of a client extremely short of breath may cause anxiety and further increase dyspnea.

Explanation/Reference:
Explanation:
(A) Oxytocin is prescribed to stimulate uterine contractions. (B) MgSO4is a central nervous system depressant prescribed to prevent and control convulsions related to preeclampsia. (C) Ampicillin is a penicillin derivative with no known teratogenic effects.
This is the safest antibiotic during pregnancy. (D) Tetracycline stains teeth yellow and is not as safe as ampicillin during pregnancy.

Section: Questions Set D
Explanation:
(A) Holding the child's discharge alone does not address the client's problem. (B) Nausea, tachycardia, and irritability are all symptoms of theophylline toxicity. The physician should benotified immediately so that a serum theophylline level can be ordered. Theophylline dose should be withheld until the physician is notified. (C) The child must be evaluated for theophylline toxicity before any discharge. (D) Cause of the nausea should be investigated before the administration of an antiemetic.

(A) A gavage tube may damage suture line. It is the most invasive and should be the last measure. (B) A nipple and bottle require sucking, which may damage sutures. (C) A 3month-old infant is not able to drink from a straw. (D) A syringe allows for the formula to be placed to the side and back of the mouth. This minimizes the amount of sucking needed.