Mr. Nelson is a 65-year-old male who has been advised that he is a candidate for coronary artery bypass grafting. He has been doing some internet research and is asking about whether or not he should have a beating heart bypass. Regarding off-pump coronary bypass grafting, the AGACNP advises Mr. Nelson that

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Question 1 of 9

Mr. Nelson is a 65-year-old male who has been advised that he is a candidate for coronary artery bypass grafting. He has been doing some internet research and is asking about whether or not he should have a beating heart bypass. Regarding off-pump coronary bypass grafting, the AGACNP advises Mr. Nelson that

Correct Answer: A

Rationale: The correct answer is A: There is a slightly higher risk of neurologic complications. Rationale: 1. Off-pump bypass grafting involves performing surgery on a beating heart without the use of a heart-lung machine. 2. The lack of cardiopulmonary bypass during off-pump surgery can lead to reduced blood flow to the brain, increasing the risk of neurologic complications. 3. This is why the AGACNP advises Mr. Nelson about the slightly higher risk of neurologic complications associated with off-pump bypass. 4. Choice B is incorrect as long-term results actually suggest similar or better patency rates for grafts in off-pump surgery. 5. Choice C is incorrect as the statement about the incidence increasing significantly in the last 10 years is not relevant to the risks of off-pump surgery. 6. Choice D is incorrect as off-pump surgery is not considerably more expensive and the correlation with better long-term outcomes is debatable.

Question 2 of 9

M. T. is a 71-year-old female who presents for evaluation of a lump on her chest. She denies any symptomsthere is no pain, erythema, edema, ecchymosis, or open areasit is just a lump. She has no idea how long it has been there and just noticed it a few weeks ago. Physical examination reveals a round, smooth, flesh-colored tumor. It is firm but not hard it has smooth borders. It measures 6 cm in diameter and is non-tender to palpation. The AGACNP suspects that this is a classic presentation of the most common chest wall tumor known as a

Correct Answer: B

Rationale: The correct answer is B: Lipoma. A lipoma is a common benign tumor made of fat cells. In this case, the patient's presentation of a painless, soft, round, flesh-colored lump with smooth borders is consistent with a lipoma. The absence of symptoms like pain, erythema, or tenderness further supports this diagnosis. Lipomas are usually non-tender to palpation and can grow to a significant size. The other choices (A, C, D) are not the correct answers because they do not align with the characteristics described in the patient's presentation. Neurolemma is associated with nerve sheath tumors, hemangioma with blood vessel tumors, and lymphangioma with lymphatic vessel tumors, none of which match the clinical findings in this case.

Question 3 of 9

The congenital abnormality of the respiratory tract, associated with abnormal apical position, is

Correct Answer: C

Rationale: The correct answer is C: Choanal atresia. The congenital abnormality of the respiratory tract with abnormal apical position is typically associated with choanal atresia, which is a blockage or narrowing of the back of the nasal passage. This condition can lead to respiratory distress in newborns due to difficulty breathing through the nose. Explanation: 1. Laryngeal stridor (Choice A) is a high-pitched noise during breathing and is not typically associated with abnormal apical position. 2. Diaphragmatic hernia (Choice B) is a defect in the diaphragm that allows abdominal organs to move into the chest cavity, but it is not related to abnormal apical position. 3. Tracheo-bronchi fistula (Choice D) is an abnormal connection between the trachea and bronchi, which is not associated with abnormal apical position. In summary, choanal atresia is the correct answer because it fits the description of

Question 4 of 9

The AGACNP recognizes that which of the following diagnostic studies is essential in all cases of acute abdomen?

Correct Answer: C

Rationale: The correct answer is C: Chest radiography. In cases of acute abdomen, a chest radiograph is essential to rule out conditions like pneumothorax, pleural effusion, or pneumonia which may present with similar symptoms. This helps in identifying potential causes of abdominal pain outside the abdomen. Abdominal radiograph (A) may not provide enough information for diagnosis. Contrast radiography (B) and ultrasonography (D) are not universally essential for all cases of acute abdomen and may not be appropriate in certain situations.

Question 5 of 9

Which one of the following drugs when used by a pregnant woman is likely to lead to oligohydramnios?

Correct Answer: B

Rationale: The correct answer is B: Captopril. Captopril is an angiotensin-converting enzyme (ACE) inhibitor that can lead to oligohydramnios in pregnant women due to its effect on reducing fetal renal function. This can result in decreased amniotic fluid levels. Diazepam (A) is a benzodiazepine used for anxiety and is not associated with oligohydramnios. Ampicillin (C) is an antibiotic commonly used during pregnancy and does not cause oligohydramnios. Pethidine (D) is an opioid analgesic with no known association with oligohydramnios in pregnancy.

Question 6 of 9

How does iron supplementation benefit pregnancy?

Correct Answer: B

Rationale: Iron supplementation benefits pregnancy by correcting or preventing iron deficiency anemia in the mother. Anemia can lead to various complications for the mother and baby. Iron is essential for the production of hemoglobin, which carries oxygen to tissues. Therefore, by reducing anemia, iron supplementation ensures optimal oxygen delivery to both the mother and the developing fetus. This ultimately supports healthy pregnancy outcomes. Explanation for other choices: A: Iron supplementation does not directly increase fetal blood flow. C: While iron deficiency may increase the risk of miscarriage, iron supplementation alone does not prevent miscarriages. D: Iron is not directly involved in fetal bone growth, so iron supplementation does not enhance this aspect of fetal development.

Question 7 of 9

K. W. is a 50-year-old woman who presents for surgical resection of the liver for treatment of metastatic colon cancer. Preoperatively, the surgeon tells her that he is planning to remove 50 to 75 of her liver. The patient is concerned that she will not be able to recover normal liver function with that much removed. The AGACNP counsels her that

Correct Answer: A

Rationale: The correct answer is A because high-volume liver resection is typically performed in individuals with significantly compromised hepatic function to ensure adequate liver remnant. Removing 50 to 75% of the liver in a patient with metastatic colon cancer may be necessary for tumor clearance but carries risks due to potential impairment of liver function postoperatively. Choices B and C provide inaccurate information regarding the timeline and extent of liver regeneration following resection. Choice D is incorrect as removing up to 95% of the liver would lead to severe consequences, such as liver failure. Hence, option A is the most appropriate advice given the patient's situation.

Question 8 of 9

Diamorphic anaemia results due to deficiency of

Correct Answer: B

Rationale: The correct answer is B: Iron and folic acid. Diamorphic anemia is characterized by the presence of both microcytic and macrocytic red blood cells, which can be caused by a deficiency in both iron and folic acid. Iron deficiency leads to microcytic anemia, while folic acid deficiency results in macrocytic anemia. Thiamine deficiency (Choice A) primarily affects the nervous system and does not directly cause diamorphic anemia. Liver enzymes deficiency (Choice D) does not directly lead to diamorphic anemia. Folic acid and thiamine deficiency (Choice C) can cause individual types of anemia but not diamorphic anemia.

Question 9 of 9

While reviewing the head CT scan of a patient following a motor vehicle accident, the AGACNP appreciates a crescent-shaped fluid collection. This most likely represents

Correct Answer: B

Rationale: The correct answer is B: Acute epidural hematoma. A crescent-shaped fluid collection seen on a head CT scan following trauma is indicative of an epidural hematoma, which typically occurs due to an arterial bleed between the dura mater and the skull. This collection appears biconvex due to the restriction of the hematoma by the dura mater and is often associated with a lucid interval followed by rapid deterioration. Explanation for Incorrect Choices: A: Acute subdural hematoma typically presents as a crescent-shaped collection but is located between the dura mater and arachnoid mater, not between the dura mater and skull as seen in epidural hematomas. C: Acute uncal herniation involves displacement of the uncus of the temporal lobe, leading to compression of the brainstem, but it does not manifest as a crescent-shaped fluid collection. D: Acute brainstem compression does not typically present as a distinct crescent-shaped

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