Free NCLEX-RN Exam Braindumps (page: 21)

Page 21 of 431

In the client with a diagnosis of coronary artery disease, the nurse would anticipate the complication of bradycardia with occlusion of which coronary artery?

  1. Right coronary artery
  2. Left main coronary artery
  3. Circumflex coronary artery
  4. Left anterior descending coronary artery

Answer(s): A

Explanation:

(A) Sinus bradycardia and atrioventricular (AV) heart block are usually a result of right coronary artery occlusion. The right coronary artery perfuses the sinoatrial and AV nodes in mostindividuals. (B) Occlusion of the left main coronary artery causes bundle branch blocks and premature ventricular contractions. (C) Occlusion of the circumflex artery does not cause bradycardia. (D) Sinus tachycardia occurs primarily with left anterior descending coronary artery occlusion because this form of occlusion impairs left ventricular function.



In the client with a diagnosis of coronary artery disease, the nurse would anticipate the complication of bradycardia with occlusion of which coronary artery?

  1. Right coronary artery
  2. Left main coronary artery
  3. Circumflex coronary artery
  4. Left anterior descending coronary artery

Answer(s): A

Explanation:

(A) Sinus bradycardia and atrioventricular (AV) heart block are usually a result of right coronary artery occlusion. The right coronary artery perfuses the sinoatrial and AV nodes in mostindividuals. (B) Occlusion of the left main coronary artery causes bundle branch blocks and premature ventricular contractions. (C) Occlusion of the circumflex artery does not cause bradycardia. (D) Sinus tachycardia occurs primarily with left anterior descending coronary artery occlusion because this form of occlusion impairs left ventricular function.



Pregnant women with diabetes often have problems related to the effectiveness of insulin in controlling their glucose levels during their second half of pregnancy. The nurse teaches the client that this is due to:

  1. Decreased glomerular filtration and increased tubular absorption
  2. Decreased estrogen levels
  3. Decreased progesterone levels
  4. Increased human placental lactogen levels

Answer(s): D

Explanation:

(A) There is a rise in glomerular filtration rate in the kidneys in conjunction with decreased tubular glucose reabsorption, resulting in glycosuria. (B) Insulin is inhibited by increased levels of estrogen. (C) Insulin is inhibited by increased levels of progesterone. (D) Human placental lactogen levels increase later in pregnancy. This hormonal antagonist reduces insulin's effectiveness, stimulates lipolysis, and increases the circulation of free fatty acids.



Pregnant women with diabetes often have problems related to the effectiveness of insulin in controlling their glucose levels during their second half of pregnancy. The nurse teaches the client that this is due to:

  1. Decreased glomerular filtration and increased tubular absorption
  2. Decreased estrogen levels
  3. Decreased progesterone levels
  4. Increased human placental lactogen levels

Answer(s): D

Explanation:

(A) There is a rise in glomerular filtration rate in the kidneys in conjunction with decreased tubular glucose reabsorption, resulting in glycosuria. (B) Insulin is inhibited by increased levels of estrogen. (C) Insulin is inhibited by increased levels of progesterone. (D) Human placental lactogen levels increase later in pregnancy. This hormonal antagonist reduces insulin's effectiveness, stimulates lipolysis, and increases the circulation of free fatty acids.



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