LPN exams gastrointestinal practice questions set 2

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New onset of constipation will most often have a nonfunctional cause. In this case, the most likely cause is the change of antihypertensives to a calcium channel-blocker. These medications are more often associated with constipation than are $\alpha$-blockers. New-onset constipation can sometimes be a symptom of colon cancer (Answer A), but this would be less likely in a patient that had a recent negative colonoscopy. One could consider a repeat colonoscopy should the constipation be persistent after addressing more likely causes. Constipation may also be secondary to hypothyroidism (Answer B), and one should be suspicious of hypothyroidism (especially in females and elderly patients). However, the calcium channel-blocker is a more likely cause than is noncompliance with a reasonable dose of thyroid medication in this social worker that cares for her disabled husband. Similarly, stress may play a role in her constipation, but the correlation between medications and the constipation should be addressed first and is more likely to be helpful.

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The correct answer is D, Acute pesticide poisoning. The symptoms described - headache, sweating, vomiting - are consistent with pesticide poisoning. Headache can be a common symptom due to the toxic effects of pesticides. Sweating and vomiting are also typical signs of pesticide poisoning. The setting of a rural area further supports this possibility as pesticide exposure is more common in rural settings. Now let's analyze why the other choices are incorrect: A: Acute panic disorder - Symptoms of panic disorder do not typically include sweating and vomiting. Panic attacks are more commonly associated with symptoms such as chest pain, shortness of breath, and palpitations. B: Acute alcohol intoxication - While alcohol intoxication can lead to vomiting, it is less likely to cause a severe headache and sweating in the absence of other common symptoms like slurred speech or impaired coordination. C: Acute appendicitis - Appendicitis typically presents with abdominal pain, not just headache. Vomiting may occur but is usually preceded

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The correct answer is D because the LPN/LVN can provide care for a client with intractable nausea and vomiting related to chemotherapy under the supervision of an RN. The LPN/LVN can administer prescribed antiemetic medications, monitor the client's response, assess for dehydration, and provide comfort measures. This task falls within the scope of practice for an LPN/LVN and does not require the advanced assessment and intervention skills of an RN. Choice A is incorrect because a client undergoing a glossectomy for oral cancer requires complex post-operative care that is beyond the scope of practice for an LPN/LVN. Choice B is incorrect because post-operative care for an obese client following a vertical banded gastroplasty involves monitoring for complications such as leaks or infections, which require the expertise of an RN. Choice C is incorrect because a client with anorexia nervosa with muscle weakness and decreased urine output may have underlying medical issues that require an RN's assessment and intervention skills

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Answer B is correct because the major histocompatibility complex (MHC) is indeed required for the activation of T helper cells by a foreign antigen. This is because T helper cells recognize antigens presented by MHC molecules on antigen-presenting cells. Without MHC presentation, T helper cells cannot be activated. Choice A is incorrect because MHC molecules do display both self and non-self antigens, which is crucial for the immune system to distinguish between harmful invaders and healthy cells. Choice C is incorrect because activated effector T helper cells can indeed activate both T and B lymphocytes/cells, playing a key role in coordinating the adaptive immune response. Choice D is incorrect because T cells do not use 'chemical warfare'; instead, they directly attack infected cells, while B cells produce antibodies that target specific antigens. In summary, choice B is false because the MHC is necessary for T helper cell activation, while choices A, C, and D are true statements regarding the adaptive immune response.

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The correct answer is B: Check for urine output of at least 30 mL/h. Prior to hanging an IV bag containing potassium, it is crucial to ensure an adequate urine output to prevent the risk of hyperkalemia. Potassium is excreted primarily through urine, so monitoring urine output helps assess kidney function and the ability to eliminate potassium efficiently. Low urine output could indicate potential kidney issues, increasing the risk of potassium buildup in the body. Incorrect choices: A: Verify a blood pressure of at least 60 mm Hg diastolic - While blood pressure is important for assessing perfusion, it is not directly related to potassium administration. C: Ensure filter placement on the IV line - While filter placement is important for preventing particulate matter from entering the bloodstream, it is not directly related to potassium administration. D: Verify a pulse of at least 50 beats per minute - Although pulse rate is essential for assessing cardiac function, it is not specifically related to potassium administration.

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The correct answer is B: Less green space. Redlining historically segregated neighborhoods, leading to disparities in access to resources. Less green space in redlined areas means limited opportunities for physical activity, increased exposure to pollutants, and higher stress levels, all of which contribute to negative health outcomes for BIPOC individuals. A: Decreased urban heat - While redlined neighborhoods may have less vegetation contributing to urban heat island effect, this is not a direct consequence of redlining affecting health outcomes of BIPOC individuals. C: Improved air quality - Redlined areas often experience poorer air quality due to industrial facilities and traffic congestion, which negatively impact health outcomes. Therefore, improved air quality is not a consequence of redlining. D: Increased access to clean water - Redlining does not directly impact access to clean water. This choice is unrelated to the consequences of redlining on health outcomes of BIPOC individuals.

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The correct answer is B: Ask the patient about loose stools. Generalized weakness in a patient taking a potassium-wasting diuretic may indicate hypokalemia, which can be caused by excessive potassium loss through the kidneys. Loose stools can contribute to potassium loss. By asking about loose stools, the nurse can assess for potential potassium depletion and take appropriate action, such as monitoring potassium levels, adjusting medication dosage, or recommending dietary changes. Incorrect choices: A: Assess for facial muscle spasms - This is not directly related to generalized weakness in this context. C: Recommend the patient avoid drinking orange juice with meals - Orange juice is a good source of potassium and avoiding it may exacerbate potassium deficiency. D: Suggest that the health care provider order a basic metabolic panel - While this may provide information on electrolyte levels, directly addressing the potential cause of potassium loss through loose stools is more appropriate.

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The correct answer is D: amino acids and glucose. Na ions facilitate the absorption of these molecules in the small intestine through the process of co-transport with carrier proteins. Glucose and amino acids are primarily absorbed in the small intestine to be utilized by the body for energy and growth. Na ions help transport these molecules across the intestinal epithelium against their concentration gradients. A: Amino acids and fructose - While Na ions do play a role in the absorption of amino acids, fructose is primarily absorbed through facilitated diffusion and does not require Na ions for absorption. B: Fatty acids and glycerol - Fatty acids and glycerol are absorbed in the small intestine through a different mechanism called micelle formation and do not rely on Na ions for absorption. C: Fatty acids and glucose - While Na ions do play a role in the absorption of glucose, fatty acids are primarily absorbed through micelle formation and do not require Na ions for absorption.

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The correct answer is C: Check the amount and character of gastric drainage and the patency of the NG tube. This is the priority nursing intervention because the patient is experiencing nausea and vomiting, which could indicate potential complications related to the NG tube, such as blockage or displacement. By checking the gastric drainage and NG tube patency, the nurse can assess if the patient's symptoms are related to these issues and take appropriate actions to address them. Choice A is incorrect because assessing the abdomen for distention and bowel sounds is important but not the priority in this situation where the patient is experiencing nausea and vomiting. Choice B is incorrect as inspecting the surgical site and drainage in the Jackson-Pratt drain is also important but not as urgent as checking the NG tube patency in this case. Choice D is incorrect as administering medication should not be the first action taken without first assessing the underlying cause of the symptoms.

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The correct answer is B: Sodium pump. The sodium-potassium pump is a vital active transport mechanism in cells that moves sodium and potassium ions against their concentration gradients. It uses ATP to pump 3 sodium ions out of the cell and 2 potassium ions into the cell. This process helps maintain the cell's resting membrane potential and is crucial for nerve impulse transmission. Now, let's analyze why the other choices are incorrect: A: Filtration - Filtration is a passive process based on pressure differentials, not active transport involving specific pumps for sodium and potassium ions. C: Diffusion - Diffusion is a passive process where molecules move from an area of high concentration to low concentration, not involving the active transport of sodium and potassium against their gradients. D: Osmosis - Osmosis is the movement of water across a semi-permeable membrane, not the active transport of sodium and potassium ions by specific pumps like the sodium-potassium pump.