what is the expected ecg finding in a patient with hypokalemia

ATI RN

ATI Capstone Medical Surgical Assessment 1 Quizlet

1. What is the expected ECG finding in a patient with hypokalemia?

A. Flattened T waves
B. Elevated ST segments
C. Widened QRS complexes
D. Widened QRS complexes on the ECG

Correct answer: A

Rationale: The correct answer is A: Flattened T waves. In hypokalemia, there is a decrease in serum potassium levels, which can lead to various ECG changes. One of the classic ECG findings associated with hypokalemia is the presence of flattened T waves. These T wave abnormalities are typically seen in multiple leads. Choice B, elevated ST segments, is not a typical ECG finding in hypokalemia. Choice C, widened QRS complexes, is more commonly associated with hyperkalemia rather than hypokalemia. Choice D is redundant and not a standard way of describing ECG findings.

2. What is the first medication to give for wheezing due to an allergic reaction?

A. Albuterol via nebulizer
B. Cromolyn 20 mg via nebulizer
C. Methylprednisolone 100 mg IV
D. Aminophylline 500 mg IV

Correct answer: A

Rationale: Albuterol is the first-line medication for treating wheezing due to an allergic reaction. Albuterol is a short-acting beta-agonist that helps relieve bronchospasm quickly. Cromolyn is more commonly used for the prevention of asthma symptoms rather than for acute treatment. Methylprednisolone and aminophylline are not the first-line medications for acute wheezing due to an allergic reaction.

3. What is the priority action for a patient experiencing chest pain from acute coronary syndrome?

A. Administer sublingual nitroglycerin
B. Obtain IV access
C. Check the patient's cardiac enzymes
D. Administer aspirin

Correct answer: A

Rationale: The correct answer is to administer sublingual nitroglycerin. Nitroglycerin helps relieve chest pain by dilating blood vessels and improving blood flow to the heart, which is crucial in managing acute coronary syndrome. While obtaining IV access and checking cardiac enzymes are important steps in the assessment and management of acute coronary syndrome, administering nitroglycerin takes precedence to alleviate symptoms and reduce cardiac tissue damage. Administering aspirin is also essential in the treatment of acute coronary syndrome, but it is not the immediate priority in this scenario.

4. What is the purpose of an escharotomy in burn management?

A. To relieve pressure and improve circulation in burn injuries
B. To remove necrotic tissue from a wound
C. To prevent infection in burn injuries
D. To remove excess fluid from burn wounds

Correct answer: A

Rationale: An escharotomy is performed to relieve pressure in areas affected by deep burns and improve circulation. This procedure involves making incisions through the eschar (burned and dead tissue) to release constricting tissue and allow for the return of blood flow. Choice B is incorrect because the removal of necrotic tissue is typically done through debridement, not escharotomy. Choice C is incorrect because preventing infection in burn injuries is usually achieved through proper wound care and antibiotic therapy, not escharotomy. Choice D is incorrect because removing excess fluid from burn wounds is managed through methods like fluid resuscitation and monitoring, not escharotomy.

5. What are the expected manifestations in a patient experiencing a thrombotic stroke?

A. Sudden numbness or loss of function on one side of the body
B. Sudden loss of consciousness and seizure
C. Gradual onset of difficulty speaking
D. Loss of sensation in the affected limb

Correct answer: A

Rationale: The correct manifestation in a patient experiencing a thrombotic stroke is sudden numbness or loss of function on one side of the body. This is due to the blockage of a blood vessel by a clot, leading to a lack of blood flow to a specific part of the brain. Choices B, C, and D are incorrect. Sudden loss of consciousness and seizure are more commonly associated with hemorrhagic strokes. Gradual onset of difficulty speaking is often seen in ischemic strokes affecting language areas, not specifically in thrombotic strokes. Loss of sensation in the affected limb is more indicative of sensory nerve damage rather than the motor deficits seen in thrombotic strokes.