NCLEX-RN Exam Questions and Answers | Exam-Dumps (Page: 10)

QUESTION: 23

A laboratory technique specific for diagnosing Lyme disease is:

Polymerase chain reaction
Heterophil antibody test
Decreased serum calcium level
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.

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QUESTION: 24

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

Hypovolemia
Renal damage
Ventricular arrhythmias
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.

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QUESTION: 24

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

Hypovolemia
Renal damage
Ventricular arrhythmias
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.

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QUESTION: 25

The therapeutic blood-level range for lithium is:

0.251.0 mEq/L
0.51.5 mEq/L
1.02.0 mEq/L
2.02.5 mEq/L

Answer(s): B

Explanation:

(A) This range is too low to be therapeutic. (B) This is the therapeutic range for lithium. (C) This range is above the therapeutic level. (D) This range is toxic and may cause severe side effects.

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QUESTION: 25

The therapeutic blood-level range for lithium is:

0.251.0 mEq/L
0.51.5 mEq/L
1.02.0 mEq/L
2.02.5 mEq/L

Answer(s): B

Explanation:

(A) This range is too low to be therapeutic. (B) This is the therapeutic range for lithium. (C) This range is above the therapeutic level. (D) This range is toxic and may cause severe side effects.

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NCLEX NCLEX-RN Exam (page: 10) NCLEX National Council Licensure Examination - -RN Updated on: 15-Feb-2026

QUESTION: 23

Explanation:

QUESTION: 24

Explanation:

QUESTION: 24

Explanation:

QUESTION: 25

Explanation:

QUESTION: 25

Explanation:

NCLEX NCLEX-RN Exam (page: 10)
NCLEX National Council Licensure Examination - -RN
Updated on: 15-Feb-2026