Which of the following structures is responsible for the production of digestive enzymes and bicarbonate-rich pancreatic juice?

Correct Answer: C

Rationale: The correct answer is C: Pancreas. The pancreas is responsible for producing digestive enzymes and bicarbonate-rich pancreatic juice. It secretes enzymes like amylase, lipase, and protease to break down carbohydrates, fats, and proteins in the small intestine. The bicarbonate-rich juice helps neutralize stomach acid. The liver (A) produces bile stored in the gallbladder (B), which aids in fat digestion. The spleen (D) is involved in immune function and blood filtration, not digestive enzyme production.

Correct Answer: D

Rationale: The correct answer is D: Assess the severity of the reaction. This should be the first action taken because it helps determine the urgency of the situation and guides subsequent steps. Assessing the severity allows for appropriate intervention - from calling emergency services if the reaction is severe, to administering medication if necessary. A: Administering an epinephrine auto-injector should only be done if the severity of the reaction warrants it, as it is a potent medication that can have serious side effects if used inappropriately. B: Positioning the person comfortably is important, but assessing the severity of the reaction takes precedence to ensure prompt and appropriate care. C: Monitoring vital signs is important, but assessing the severity of the reaction is crucial in determining the immediate course of action.

Correct Answer: D

Rationale: The correct answer is D: Transporting the patient to a medical facility for antivenom administration. This is recommended because antivenom is the definitive treatment for snakebites. Tourniquets (choice A) can worsen tissue damage and should be avoided. Elevating the limb (choice B) may not prevent venom spread. Making an incision (choice C) can lead to infection and increased venom absorption. Antivenom administration at a medical facility is crucial for proper management of snakebites.

Correct Answer: B

Rationale: The primary goal of CPR is to restore spontaneous circulation and oxygenation to the body to maintain vital organ function. By performing chest compressions and rescue breaths, CPR aims to circulate oxygenated blood to the brain and other vital organs. This is crucial to prevent brain damage and increase the chances of survival. The other choices are incorrect because CPR does not address the underlying cause of cardiac arrest (A), provide pain relief (C), or prevent further complications such as organ failure (D). The immediate focus in a cardiac arrest situation is to maintain blood flow and oxygen delivery to vital organs until advanced medical care can be provided.

Correct Answer: B

Rationale: The correct answer is B: Ectopic pregnancy. In this scenario, the combination of missed periods, positive pregnancy test, and empty uterus on ultrasound with fluid in the cul-de-sac is highly suggestive of an ectopic pregnancy. Ectopic pregnancy occurs when the fertilized egg implants outside the uterus, commonly in the fallopian tube. The presence of fluid in the cul-de-sac indicates possible blood from a ruptured ectopic pregnancy, causing the severe lower abdominal pain. Ovarian cyst rupture (A) typically presents with less severe pain. Septic abortion (C) would present with signs of infection and products of conception in the uterus. Ovarian torsion (D) would present with acute onset of unilateral lower abdominal pain and a palpable adnexal mass, not fluid in the cul-de-sac.