HESI RN CAT Exit Exam

Correct Answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.

Correct Answer: D

Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.

Correct Answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.

Correct Answer: D

Rationale: Combining legumes and grains ensures the client receives all essential amino acids to form complete proteins, which is crucial in a vegetarian diet. Options A, B, and C are incorrect. Option A is not necessary as there are plant-based sources of essential amino acids in a lacto-vegetarian diet. Option B suggests vitamin K, which is not directly related to enhancing red blood cell production. Option C mentions increasing dark yellow vegetables, which are sources of non-heme iron, but combining legumes and grains is more effective in addressing the protein needs of a lacto-vegetarian.

Correct Answer: A

Rationale: The correct calculation for infusion based on the given data is 5 ml/hr. To calculate the infusion rate per hour, you need to determine the number of contractions per hour. If contractions are occurring every 2-3 minutes, this would mean approximately 20-30 contractions per hour. Therefore, if the pump is infusing 5 ml per contraction, the total infusion rate per hour would be 5 ml x 20 contractions = 100 ml/hr. This makes choice A the correct answer. Choices B, C, and D are incorrect as they do not align with the calculation based on the given data.