Free NCLEX-RN Exam Braindumps (page: 12)

Page 12 of 431

A laboratory technique specific for diagnosing Lyme disease is:

  1. Polymerase chain reaction
  2. Heterophil antibody test
  3. Decreased serum calcium level
  4. Increased serum potassium level

Answer(s): A

Explanation:

(A) Polymerase chain reaction is the laboratory technique specific for Lyme disease. (B) Heterophil antibody test is used to diagnose mononucleosis. (C) Lyme disease does not decrease the serum calcium level. (D) Lyme disease does not increase the serum potassium level.



A laboratory technique specific for diagnosing Lyme disease is:

  1. Polymerase chain reaction
  2. Heterophil antibody test
  3. Decreased serum calcium level
  4. Increased serum potassium level

Answer(s): A

Explanation:

(A) Polymerase chain reaction is the laboratory technique specific for Lyme disease. (B) Heterophil antibody test is used to diagnose mononucleosis. (C) Lyme disease does not decrease the serum calcium level. (D) Lyme disease does not increase the serum potassium level.



The most important reason to closely assess circumferential burns at least every hour is that they may result in:

  1. Hypovolemia
  2. Renal damage
  3. Ventricular arrhythmias
  4. Loss of peripheral pulses

Answer(s): D

Explanation:

(A) Hypovolemia could be a result of fluid loss from thermal injury, but not as a result of the circumferential injury. (B) Renal damage is typically seen because of prolonged hypovolemia or myoglobinuria. (C) Electrical injuries and electrolyte changes typically cause arrhythmias in the burn client. (D) Full-thickness circumferential burns are nonelastic and result in an internal tourniquet effect that compromises distal blood flow when the area involved is an extremity.Circumferential full-thickness torso burns compromise respiratory motion and, when extreme, cardiac return.



The most important reason to closely assess circumferential burns at least every hour is that they may result in:

  1. Hypovolemia
  2. Renal damage
  3. Ventricular arrhythmias
  4. Loss of peripheral pulses

Answer(s): D

Explanation:

(A) Hypovolemia could be a result of fluid loss from thermal injury, but not as a result of the circumferential injury. (B) Renal damage is typically seen because of prolonged hypovolemia or myoglobinuria. (C) Electrical injuries and electrolyte changes typically cause arrhythmias in the burn client. (D) Full-thickness circumferential burns are nonelastic and result in an internal tourniquet effect that compromises distal blood flow when the area involved is an extremity.Circumferential full-thickness torso burns compromise respiratory motion and, when extreme, cardiac return.



Page 12 of 431



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