Correct Answer: A

Rationale: Protamine is the antidote for heparin overdose. It works by neutralizing the anticoagulant effects of heparin. Amicar (Choice B) is used to treat excessive bleeding due to elevated fibrinolytic activity and is not the antidote for heparin overdose. Imferon (Choice C) is an iron supplement and is not indicated for heparin overdose. Diltiazem (Choice D) is a calcium channel blocker used to treat hypertension and angina, not for heparin overdose. Therefore, the correct choice is Protamine (Choice A).

Correct Answer: D

Rationale: After the insertion of an enteral feeding tube, the most accurate method for verifying its placement is by aspirating gastric contents. This method ensures that the tube is correctly positioned in the stomach. Abdominal x-ray can provide additional confirmation but is not as immediate or practical. Auscultation and flushing the tube with saline are not as reliable as aspirating gastric contents for verifying proper placement of an enteral feeding tube.

Correct Answer: C

Rationale: The correct answer is to place the child in respiratory/secretion precautions first. Meningococcal meningitis is highly contagious, and respiratory precautions are essential to prevent the spread of the infection. Seizure precautions may be necessary but are not the priority upon admission. Monitoring neurologic status is important but not the initial action needed. While antibiotic therapy like Cefotaxime is crucial, implementing isolation precautions to prevent transmission takes precedence in this situation.

Correct Answer: B

Rationale: The correct answer is B: 'Oozing liquid stool.' In a paralyzed client, oozing liquid stool is a common sign of fecal impaction. This occurrence requires prompt intervention to prevent complications. Choice A, 'Presence of blood in stools,' is more indicative of gastrointestinal bleeding rather than fecal impaction. Choice C, 'Continuous rumbling flatulence,' is associated with gas movement in the intestines and not specifically linked to fecal impaction. Choice D, 'Absence of bowel movements,' could be a sign of constipation but does not directly point towards fecal impaction.

Correct Answer: B

Rationale: An allergy to shrimp is a contraindication for a myelogram because the contrast dye used in the procedure contains iodine, which can trigger allergic reactions in individuals allergic to shellfish. Choices A, C, and D are not contraindications for a myelogram. Inability to lie still for an extended period, claustrophobia, or a previous headache after a spinal tap are concerns that can be managed during the procedure but do not necessarily prevent the test from being performed.