Certified Dialysis Nurse (CDN) Certification| Certified Dialysis Nurse (CDN) Certification Exam Preparation

Cer fied Dialysis Nurse (CDN) Cer fica on| Cer fied Dialysis Nurse (CDN) Cer fica on Exam
Prepara on



There are how many stages of chronic kidney disease?

There are 5 stages of chronic kidney disease (CKD).

Stage 1 CKD (GFR)

Normal or High > 90 mL/min

Stage 2 CKD (GFR)

Mildly Decreased 60-89 mL/min

Stage 3a CKD (GFR)

Mild to Moderately Decreased 45-59 mL/min

Stage 3b CKD (GFR)

Moderate to Severely Decreased 30-44 mL/min

Stage 4 CKD (GFR)

Severely Decreased 15-29 mL/min

Stage 5 CKD (GFR)

Kidney Failure < 15 mL/min

Because pericardial effusions may suddenly enlarge and result in cardiac tamponade, surgical
drainage is usually considered when the effusion volume exceeds ___________.

Because pericardial effusions may suddenly enlarge and result in cardiac tamponade, surgical
drainage is usually considered when the effusion volume exceeds 250mL. The most common
procedure is subxiphoid pericardiostomy done under local anesthesia. If the effusion is less than
250mL, increasing the dialysis to 5 to 7 <mes per week may resolve about half of the pericardial
effusions. Medica<ons such as NSAIDs and steroids have NOT proven to be helpful.

If a hemodialysis pa<ent is experiencing severe anxiety, an appropriate media<on is
____________.

If a hemodialysis pa<ent is experiencing severe anxiety, an appropriate medica<on is lorazepam
(A van). Lorazepam is a short-ac<ng benzodiazepine metabolized by the liver; the medica<on
should be given for a limited period of <me. Diazepam is contraindicated for those on

, hemodialysis. Barbiturates, such as phenobarbital, are removed through dialysis and should not
be used for anxiety. In some cases, such as when the pa<ent becomes extremely agitated,
haloperidol may be prescribed.

_________ uses pressure to ac<vely drag larger, poten<ally uremic molecules such as beta-2-
microglobulin, across the dialyzer into the ultrafiltrate.

Convec on uses pressure to ac<vely drag larger, poten<ally uremic molecules such as beta-2-
microglobulin, across the dialyzer into the ultrafiltrate.

Convec<on Volume (Total Ultrafiltra<on Volume) = _____________ + _____________.

Convec<on Volume (Total Ultrafiltra<on Volume) = Subs tu on Volume + Net Ultrafiltra on
Volume

In hemodiafiltra<on (HDF), the ___________ is the amount of replacement fluid infused into
the pa<ent's blood line to maintain fluid balance.

In hemodiafiltra<on (HDF), the subs tu on fluid is the amount of replacement fluid infused
into the pa<ent's blood line to maintain fluid balance. This fluid must be sterile and non-
pyrogenic.

This hemodiafiltra<on (HDF) modality is associated with high solute clearance of low- to high-
molecular-weight solutes.

Post-Dilu on Hemodiafiltra on (HDF). The primary advantage to the use of post-dilu<on mode
for hemodiafiltra<on is high solute clearance of low- to high- molecular weight solutes.

Commonly used hemodiafiltra<on (HDF) modali<es include:

Pre-Dilu on HDF and Post-Dilu on HDF

This modality of hemodiafiltra<on (HDF) can use > 35 L of subs<tu<on fluid leading to
hemodilu<on.

Pre-Dilu on Hemodiafiltra on (HDF)

Large volumes (> 35 L) of subs<tu<on fluid used for pre-dilu<on hemodiafiltra<on (HDF) may
reduce:

Large volumes (> 35 L) of subs<tu<on fluid used for pre-dilu on hemodiafiltra on
(HDF) may reduce solute clearances, hematocrit, viscosity, and onco c pressure. Pre-dilu<on
hemodiafiltra<on may also increase membrane fouling.

This modality of hemodiafiltra<on (HDF) can use > 21 L of subs<tu<on fluid.